Finding the Fourth Proportional to 139,196.90, 192,092.20 and 75,534.68

Step by Step Solution

1. Step 1: Write the proportion equation
   139,196.90 : 192,092.20 = 75,534.68 : x
2. Step 2: Convert to fraction form
   139,196.90/192,092.20 = 75,534.68/x
3. Step 3: Cross multiply
   139,196.90x = 192,092.20 × 75,534.68
4. Step 4: Simplify right side
   139,196.90x = 14,509,622,857.50
5. Step 5: Solve for x
   x = 14,509,622,857.50/139,196.90
6. Step 6: Final answer
   x = 104,238.12