Finding the Fourth Proportional to 63,139.17, 87,129.30 and 34,458.09

Step by Step Solution

1. Step 1: Write the proportion equation
   63,139.17 : 87,129.30 = 34,458.09 : x
2. Step 2: Convert to fraction form
   63,139.17/87,129.30 = 34,458.09/x
3. Step 3: Cross multiply
   63,139.17x = 87,129.30 × 34,458.09
4. Step 4: Simplify right side
   63,139.17x = 3,002,309,261.04
5. Step 5: Solve for x
   x = 3,002,309,261.04/63,139.17
6. Step 6: Final answer
   x = 47,550.66