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Finding the Fourth Proportional to 8,451.78, 12,677.82 and 2,906.52

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Solution

The fourth proportional to 8,451.78, 12,677.82 and 2,906.52 is: 4,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.78 : 12,677.82 = 2,906.52 : x
  2. Step 2: Convert to fraction form
    8,451.78/12,677.82 = 2,906.52/x
  3. Step 3: Cross multiply
    8,451.78x = 12,677.82 × 2,906.52
  4. Step 4: Simplify right side
    8,451.78x = 36,848,337.39
  5. Step 5: Solve for x
    x = 36,848,337.39/8,451.78
  6. Step 6: Final answer
    x = 4,359.83

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