Finding the Fourth Proportional to 139,198.60, 192,094.61 and 75,536.42

Step by Step Solution

1. Step 1: Write the proportion equation
   139,198.60 : 192,094.61 = 75,536.42 : x
2. Step 2: Convert to fraction form
   139,198.60/192,094.61 = 75,536.42/x
3. Step 3: Cross multiply
   139,198.60x = 192,094.61 × 75,536.42
4. Step 4: Simplify right side
   139,198.60x = 14,510,137,802.54
5. Step 5: Solve for x
   x = 14,510,137,802.54/139,198.60
6. Step 6: Final answer
   x = 104,240.54