Finding the Fourth Proportional to 86,108.72, 129,142.92 and 33,496.88

Step by Step Solution

1. Step 1: Write the proportion equation
   86,108.72 : 129,142.92 = 33,496.88 : x
2. Step 2: Convert to fraction form
   86,108.72/129,142.92 = 33,496.88/x
3. Step 3: Cross multiply
   86,108.72x = 129,142.92 × 33,496.88
4. Step 4: Simplify right side
   86,108.72x = 4,325,884,894.09
5. Step 5: Solve for x
   x = 4,325,884,894.09/86,108.72
6. Step 6: Final answer
   x = 50,237.48