Finding the Fourth Proportional to 139,161.24, 192,042.90 and 75,498.89

Step by Step Solution

1. Step 1: Write the proportion equation
   139,161.24 : 192,042.90 = 75,498.89 : x
2. Step 2: Convert to fraction form
   139,161.24/192,042.90 = 75,498.89/x
3. Step 3: Cross multiply
   139,161.24x = 192,042.90 × 75,498.89
4. Step 4: Simplify right side
   139,161.24x = 14,499,024,822.17
5. Step 5: Solve for x
   x = 14,499,024,822.17/139,161.24
6. Step 6: Final answer
   x = 104,188.67