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Finding the Fourth Proportional to 13,135.82, 19,712.01 and 8,756.42

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Solution

The fourth proportional to 13,135.82, 19,712.01 and 8,756.42 is: 13,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.82 : 19,712.01 = 8,756.42 : x
  2. Step 2: Convert to fraction form
    13,135.82/19,712.01 = 8,756.42/x
  3. Step 3: Cross multiply
    13,135.82x = 19,712.01 × 8,756.42
  4. Step 4: Simplify right side
    13,135.82x = 172,606,638.60
  5. Step 5: Solve for x
    x = 172,606,638.60/13,135.82
  6. Step 6: Final answer
    x = 13,140.15

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