Finding the Fourth Proportional to 71,561.38, 107,361.51 and 50,916.10

Step by Step Solution

1. Step 1: Write the proportion equation
   71,561.38 : 107,361.51 = 50,916.10 : x
2. Step 2: Convert to fraction form
   71,561.38/107,361.51 = 50,916.10/x
3. Step 3: Cross multiply
   71,561.38x = 107,361.51 × 50,916.10
4. Step 4: Simplify right side
   71,561.38x = 5,466,429,379.31
5. Step 5: Solve for x
   x = 5,466,429,379.31/71,561.38
6. Step 6: Final answer
   x = 76,387.98