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Finding the Fourth Proportional to 72,666.51, 100,238.74 and 45,762.76

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Solution

The fourth proportional to 72,666.51, 100,238.74 and 45,762.76 is: 63,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,666.51 : 100,238.74 = 45,762.76 : x
  2. Step 2: Convert to fraction form
    72,666.51/100,238.74 = 45,762.76/x
  3. Step 3: Cross multiply
    72,666.51x = 100,238.74 × 45,762.76
  4. Step 4: Simplify right side
    72,666.51x = 4,587,201,401.32
  5. Step 5: Solve for x
    x = 4,587,201,401.32/72,666.51
  6. Step 6: Final answer
    x = 63,126.76

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