Finding the Fourth Proportional to 139,399.74, 192,372.56 and 75,737.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139,399.74 : 192,372.56 = 75,737.52 : x
2. Step 2: Convert to fraction form
   139,399.74/192,372.56 = 75,737.52/x
3. Step 3: Cross multiply
   139,399.74x = 192,372.56 × 75,737.52
4. Step 4: Simplify right side
   139,399.74x = 14,569,820,610.45
5. Step 5: Solve for x
   x = 14,569,820,610.45/139,399.74
6. Step 6: Final answer
   x = 104,518.28