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Finding the Fourth Proportional to 36,447.57, 54,686.34 and 19,787.49

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Solution

The fourth proportional to 36,447.57, 54,686.34 and 19,787.49 is: 29,689.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,447.57 : 54,686.34 = 19,787.49 : x
  2. Step 2: Convert to fraction form
    36,447.57/54,686.34 = 19,787.49/x
  3. Step 3: Cross multiply
    36,447.57x = 54,686.34 × 19,787.49
  4. Step 4: Simplify right side
    36,447.57x = 1,082,105,405.89
  5. Step 5: Solve for x
    x = 1,082,105,405.89/36,447.57
  6. Step 6: Final answer
    x = 29,689.37

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