Finding the Fourth Proportional to 139,792.08, 192,916.52 and 76,133.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,792.08 : 192,916.52 = 76,133.32 : x
2. Step 2: Convert to fraction form
   139,792.08/192,916.52 = 76,133.32/x
3. Step 3: Cross multiply
   139,792.08x = 192,916.52 × 76,133.32
4. Step 4: Simplify right side
   139,792.08x = 14,687,375,150.45
5. Step 5: Solve for x
   x = 14,687,375,150.45/139,792.08
6. Step 6: Final answer
   x = 105,065.86