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Finding the Fourth Proportional to 59,728.80, 89,593.20 and 51,418.20

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Solution

The fourth proportional to 59,728.80, 89,593.20 and 51,418.20 is: 77,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,728.80 : 89,593.20 = 51,418.20 : x
  2. Step 2: Convert to fraction form
    59,728.80/89,593.20 = 51,418.20/x
  3. Step 3: Cross multiply
    59,728.80x = 89,593.20 × 51,418.20
  4. Step 4: Simplify right side
    59,728.80x = 4,606,721,076.24
  5. Step 5: Solve for x
    x = 4,606,721,076.24/59,728.80
  6. Step 6: Final answer
    x = 77,127.30

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