Finding the Fourth Proportional to 91,944.16, 137,916.72 and 36,540.32

Step by Step Solution

1. Step 1: Write the proportion equation
   91,944.16 : 137,916.72 = 36,540.32 : x
2. Step 2: Convert to fraction form
   91,944.16/137,916.72 = 36,540.32/x
3. Step 3: Cross multiply
   91,944.16x = 137,916.72 × 36,540.32
4. Step 4: Simplify right side
   91,944.16x = 5,039,521,082.15
5. Step 5: Solve for x
   x = 5,039,521,082.15/91,944.16
6. Step 6: Final answer
   x = 54,810.67