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Finding the Fourth Proportional to 49,471.81, 74,207.86 and 12,031.89

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Solution

The fourth proportional to 49,471.81, 74,207.86 and 12,031.89 is: 18,047.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,471.81 : 74,207.86 = 12,031.89 : x
  2. Step 2: Convert to fraction form
    49,471.81/74,207.86 = 12,031.89/x
  3. Step 3: Cross multiply
    49,471.81x = 74,207.86 × 12,031.89
  4. Step 4: Simplify right side
    49,471.81x = 892,860,437.62
  5. Step 5: Solve for x
    x = 892,860,437.62/49,471.81
  6. Step 6: Final answer
    x = 18,047.86

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