Finding the Fourth Proportional to 51,801.52, 71,479.37 and 29,139.74

Step by Step Solution

1. Step 1: Write the proportion equation
   51,801.52 : 71,479.37 = 29,139.74 : x
2. Step 2: Convert to fraction form
   51,801.52/71,479.37 = 29,139.74/x
3. Step 3: Cross multiply
   51,801.52x = 71,479.37 × 29,139.74
4. Step 4: Simplify right side
   51,801.52x = 2,082,890,111.47
5. Step 5: Solve for x
   x = 2,082,890,111.47/51,801.52
6. Step 6: Final answer
   x = 40,209.06