Finding the Fourth Proportional to 139,472.94, 192,472.90 and 75,810.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,472.94 : 192,472.90 = 75,810.56 : x
2. Step 2: Convert to fraction form
   139,472.94/192,472.90 = 75,810.56/x
3. Step 3: Cross multiply
   139,472.94x = 192,472.90 × 75,810.56
4. Step 4: Simplify right side
   139,472.94x = 14,591,478,333.82
5. Step 5: Solve for x
   x = 14,591,478,333.82/139,472.94
6. Step 6: Final answer
   x = 104,618.70