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Finding the Fourth Proportional to 59,728.40, 89,722.20 and 57,525.20

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Solution

The fourth proportional to 59,728.40, 89,722.20 and 57,525.20 is: 86,412.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,728.40 : 89,722.20 = 57,525.20 : x
  2. Step 2: Convert to fraction form
    59,728.40/89,722.20 = 57,525.20/x
  3. Step 3: Cross multiply
    59,728.40x = 89,722.20 × 57,525.20
  4. Step 4: Simplify right side
    59,728.40x = 5,161,287,499.44
  5. Step 5: Solve for x
    x = 5,161,287,499.44/59,728.40
  6. Step 6: Final answer
    x = 86,412.62

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