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Finding the Fourth Proportional to 41,978.54, 62,974.64 and 12,399.36

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Solution

The fourth proportional to 41,978.54, 62,974.64 and 12,399.36 is: 18,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,978.54 : 62,974.64 = 12,399.36 : x
  2. Step 2: Convert to fraction form
    41,978.54/62,974.64 = 12,399.36/x
  3. Step 3: Cross multiply
    41,978.54x = 62,974.64 × 12,399.36
  4. Step 4: Simplify right side
    41,978.54x = 780,845,232.23
  5. Step 5: Solve for x
    x = 780,845,232.23/41,978.54
  6. Step 6: Final answer
    x = 18,601.06

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