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Finding the Fourth Proportional to 12,913.79, 19,374.35 and 6,677.19

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Solution

The fourth proportional to 12,913.79, 19,374.35 and 6,677.19 is: 10,017.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913.79 : 19,374.35 = 6,677.19 : x
  2. Step 2: Convert to fraction form
    12,913.79/19,374.35 = 6,677.19/x
  3. Step 3: Cross multiply
    12,913.79x = 19,374.35 × 6,677.19
  4. Step 4: Simplify right side
    12,913.79x = 129,366,182.69
  5. Step 5: Solve for x
    x = 129,366,182.69/12,913.79
  6. Step 6: Final answer
    x = 10,017.68

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