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Finding the Fourth Proportional to 37,992.90, 56,989.37 and 9,912.88

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Solution

The fourth proportional to 37,992.90, 56,989.37 and 9,912.88 is: 14,869.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,992.90 : 56,989.37 = 9,912.88 : x
  2. Step 2: Convert to fraction form
    37,992.90/56,989.37 = 9,912.88/x
  3. Step 3: Cross multiply
    37,992.90x = 56,989.37 × 9,912.88
  4. Step 4: Simplify right side
    37,992.90x = 564,928,882.10
  5. Step 5: Solve for x
    x = 564,928,882.10/37,992.90
  6. Step 6: Final answer
    x = 14,869.33

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