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Finding the Fourth Proportional to 19,730.73, 27,228.90 and 10,778.32

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Solution

The fourth proportional to 19,730.73, 27,228.90 and 10,778.32 is: 14,874.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.73 : 27,228.90 = 10,778.32 : x
  2. Step 2: Convert to fraction form
    19,730.73/27,228.90 = 10,778.32/x
  3. Step 3: Cross multiply
    19,730.73x = 27,228.90 × 10,778.32
  4. Step 4: Simplify right side
    19,730.73x = 293,481,797.45
  5. Step 5: Solve for x
    x = 293,481,797.45/19,730.73
  6. Step 6: Final answer
    x = 14,874.35

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