Finding the Fourth Proportional to 139,492.10, 192,496.83 and 75,831.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,492.10 : 192,496.83 = 75,831.50 : x
2. Step 2: Convert to fraction form
   139,492.10/192,496.83 = 75,831.50/x
3. Step 3: Cross multiply
   139,492.10x = 192,496.83 × 75,831.50
4. Step 4: Simplify right side
   139,492.10x = 14,597,323,364.15
5. Step 5: Solve for x
   x = 14,597,323,364.15/139,492.10
6. Step 6: Final answer
   x = 104,646.24