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Finding the Fourth Proportional to 8,291.43, 12,434.99 and 3,904.47

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Solution

The fourth proportional to 8,291.43, 12,434.99 and 3,904.47 is: 5,855.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.43 : 12,434.99 = 3,904.47 : x
  2. Step 2: Convert to fraction form
    8,291.43/12,434.99 = 3,904.47/x
  3. Step 3: Cross multiply
    8,291.43x = 12,434.99 × 3,904.47
  4. Step 4: Simplify right side
    8,291.43x = 48,552,025.88
  5. Step 5: Solve for x
    x = 48,552,025.88/8,291.43
  6. Step 6: Final answer
    x = 5,855.69

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