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Finding the Fourth Proportional to 46,087.80, 69,114.42 and 19,779

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Solution

The fourth proportional to 46,087.80, 69,114.42 and 19,779 is: 29,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,087.80 : 69,114.42 = 19,779 : x
  2. Step 2: Convert to fraction form
    46,087.80/69,114.42 = 19,779/x
  3. Step 3: Cross multiply
    46,087.80x = 69,114.42 × 19,779
  4. Step 4: Simplify right side
    46,087.80x = 1,367,014,113.18
  5. Step 5: Solve for x
    x = 1,367,014,113.18/46,087.80
  6. Step 6: Final answer
    x = 29,661.08

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