Finding the Fourth Proportional to 139,359.24, 192,315 and 75,697.08

Step by Step Solution

1. Step 1: Write the proportion equation
   139,359.24 : 192,315 = 75,697.08 : x
2. Step 2: Convert to fraction form
   139,359.24/192,315 = 75,697.08/x
3. Step 3: Cross multiply
   139,359.24x = 192,315 × 75,697.08
4. Step 4: Simplify right side
   139,359.24x = 14,557,683,940.20
5. Step 5: Solve for x
   x = 14,557,683,940.20/139,359.24
6. Step 6: Final answer
   x = 104,461.56