Finding the Fourth Proportional to 92,082.72, 137,877.96 and 58,621.60

Step by Step Solution

1. Step 1: Write the proportion equation
   92,082.72 : 137,877.96 = 58,621.60 : x
2. Step 2: Convert to fraction form
   92,082.72/137,877.96 = 58,621.60/x
3. Step 3: Cross multiply
   92,082.72x = 137,877.96 × 58,621.60
4. Step 4: Simplify right side
   92,082.72x = 8,082,626,619.94
5. Step 5: Solve for x
   x = 8,082,626,619.94/92,082.72
6. Step 6: Final answer
   x = 87,775.72