Finding the Fourth Proportional to 139,200.62, 192,097.36 and 75,538.42

Step by Step Solution

1. Step 1: Write the proportion equation
   139,200.62 : 192,097.36 = 75,538.42 : x
2. Step 2: Convert to fraction form
   139,200.62/192,097.36 = 75,538.42/x
3. Step 3: Cross multiply
   139,200.62x = 192,097.36 × 75,538.42
4. Step 4: Simplify right side
   139,200.62x = 14,510,731,060.57
5. Step 5: Solve for x
   x = 14,510,731,060.57/139,200.62
6. Step 6: Final answer
   x = 104,243.29