Finding the Fourth Proportional to 139,469.92, 192,468.76 and 75,807.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,469.92 : 192,468.76 = 75,807.56 : x
2. Step 2: Convert to fraction form
   139,469.92/192,468.76 = 75,807.56/x
3. Step 3: Cross multiply
   139,469.92x = 192,468.76 × 75,807.56
4. Step 4: Simplify right side
   139,469.92x = 14,590,587,071.83
5. Step 5: Solve for x
   x = 14,590,587,071.83/139,469.92
6. Step 6: Final answer
   x = 104,614.58