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Finding the Fourth Proportional to 58,721.64, 80,923.99 and 57,642.01

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Solution

The fourth proportional to 58,721.64, 80,923.99 and 57,642.01 is: 79,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,721.64 : 80,923.99 = 57,642.01 : x
  2. Step 2: Convert to fraction form
    58,721.64/80,923.99 = 57,642.01/x
  3. Step 3: Cross multiply
    58,721.64x = 80,923.99 × 57,642.01
  4. Step 4: Simplify right side
    58,721.64x = 4,664,621,440.82
  5. Step 5: Solve for x
    x = 4,664,621,440.82/58,721.64
  6. Step 6: Final answer
    x = 79,436.16

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