Finding the Fourth Proportional to 91,790.88, 137,730.48 and 32,669.60

Step by Step Solution

1. Step 1: Write the proportion equation
   91,790.88 : 137,730.48 = 32,669.60 : x
2. Step 2: Convert to fraction form
   91,790.88/137,730.48 = 32,669.60/x
3. Step 3: Cross multiply
   91,790.88x = 137,730.48 × 32,669.60
4. Step 4: Simplify right side
   91,790.88x = 4,499,599,689.41
5. Step 5: Solve for x
   x = 4,499,599,689.41/91,790.88
6. Step 6: Final answer
   x = 49,020.12