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Finding the Fourth Proportional to 115,588.81, 159,263.58 and 77,797.45

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Solution

The fourth proportional to 115,588.81, 159,263.58 and 77,797.45 is: 107,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,588.81 : 159,263.58 = 77,797.45 : x
  2. Step 2: Convert to fraction form
    115,588.81/159,263.58 = 77,797.45/x
  3. Step 3: Cross multiply
    115,588.81x = 159,263.58 × 77,797.45
  4. Step 4: Simplify right side
    115,588.81x = 12,390,300,401.87
  5. Step 5: Solve for x
    x = 12,390,300,401.87/115,588.81
  6. Step 6: Final answer
    x = 107,192.91

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