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Finding the Fourth Proportional to 11,903.81, 17,857.97 and 4,788.59

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Solution

The fourth proportional to 11,903.81, 17,857.97 and 4,788.59 is: 7,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.81 : 17,857.97 = 4,788.59 : x
  2. Step 2: Convert to fraction form
    11,903.81/17,857.97 = 4,788.59/x
  3. Step 3: Cross multiply
    11,903.81x = 17,857.97 × 4,788.59
  4. Step 4: Simplify right side
    11,903.81x = 85,514,472.62
  5. Step 5: Solve for x
    x = 85,514,472.62/11,903.81
  6. Step 6: Final answer
    x = 7,183.79

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