Finding the Fourth Proportional to 141,131.52, 194,728.32 and 81,504

Step by Step Solution

1. Step 1: Write the proportion equation
   141,131.52 : 194,728.32 = 81,504 : x
2. Step 2: Convert to fraction form
   141,131.52/194,728.32 = 81,504/x
3. Step 3: Cross multiply
   141,131.52x = 194,728.32 × 81,504
4. Step 4: Simplify right side
   141,131.52x = 15,871,136,993.28
5. Step 5: Solve for x
   x = 15,871,136,993.28/141,131.52
6. Step 6: Final answer
   x = 112,456.36