Finding the Fourth Proportional to 139,050.82, 191,891.46 and 75,388.78

Step by Step Solution

1. Step 1: Write the proportion equation
   139,050.82 : 191,891.46 = 75,388.78 : x
2. Step 2: Convert to fraction form
   139,050.82/191,891.46 = 75,388.78/x
3. Step 3: Cross multiply
   139,050.82x = 191,891.46 × 75,388.78
4. Step 4: Simplify right side
   139,050.82x = 14,466,463,061.82
5. Step 5: Solve for x
   x = 14,466,463,061.82/139,050.82
6. Step 6: Final answer
   x = 104,037.24