Finding the Fourth Proportional to 75,728.72, 104,505.72 and 43,916.10

Step by Step Solution

1. Step 1: Write the proportion equation
   75,728.72 : 104,505.72 = 43,916.10 : x
2. Step 2: Convert to fraction form
   75,728.72/104,505.72 = 43,916.10/x
3. Step 3: Cross multiply
   75,728.72x = 104,505.72 × 43,916.10
4. Step 4: Simplify right side
   75,728.72x = 4,589,483,650.09
5. Step 5: Solve for x
   x = 4,589,483,650.09/75,728.72
6. Step 6: Final answer
   x = 60,604.27