Finding the Fourth Proportional to 139,363.57, 192,325.89 and 75,705.67

Step by Step Solution

1. Step 1: Write the proportion equation
   139,363.57 : 192,325.89 = 75,705.67 : x
2. Step 2: Convert to fraction form
   139,363.57/192,325.89 = 75,705.67/x
3. Step 3: Cross multiply
   139,363.57x = 192,325.89 × 75,705.67
4. Step 4: Simplify right side
   139,363.57x = 14,560,160,360.80
5. Step 5: Solve for x
   x = 14,560,160,360.80/139,363.57
6. Step 6: Final answer
   x = 104,476.09