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Finding the Fourth Proportional to 46,920.91, 70,381.82 and 11,860.57

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Solution

The fourth proportional to 46,920.91, 70,381.82 and 11,860.57 is: 17,790.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,920.91 : 70,381.82 = 11,860.57 : x
  2. Step 2: Convert to fraction form
    46,920.91/70,381.82 = 11,860.57/x
  3. Step 3: Cross multiply
    46,920.91x = 70,381.82 × 11,860.57
  4. Step 4: Simplify right side
    46,920.91x = 834,768,502.84
  5. Step 5: Solve for x
    x = 834,768,502.84/46,920.91
  6. Step 6: Final answer
    x = 17,790.97

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