Finding the Fourth Proportional to 139,361.01, 192,397.98 and 91,752.75

Step by Step Solution

1. Step 1: Write the proportion equation
   139,361.01 : 192,397.98 = 91,752.75 : x
2. Step 2: Convert to fraction form
   139,361.01/192,397.98 = 91,752.75/x
3. Step 3: Cross multiply
   139,361.01x = 192,397.98 × 91,752.75
4. Step 4: Simplify right side
   139,361.01x = 17,653,044,103.52
5. Step 5: Solve for x
   x = 17,653,044,103.52/139,361.01
6. Step 6: Final answer
   x = 126,671.33