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Finding the Fourth Proportional to 12,786.41, 19,174.95 and 4,464.87

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Solution

The fourth proportional to 12,786.41, 19,174.95 and 4,464.87 is: 6,695.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786.41 : 19,174.95 = 4,464.87 : x
  2. Step 2: Convert to fraction form
    12,786.41/19,174.95 = 4,464.87/x
  3. Step 3: Cross multiply
    12,786.41x = 19,174.95 × 4,464.87
  4. Step 4: Simplify right side
    12,786.41x = 85,613,659.01
  5. Step 5: Solve for x
    x = 85,613,659.01/12,786.41
  6. Step 6: Final answer
    x = 6,695.68

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