Finding the Fourth Proportional to 141,156, 194,812.56 and 81,540

Step by Step Solution

1. Step 1: Write the proportion equation
   141,156 : 194,812.56 = 81,540 : x
2. Step 2: Convert to fraction form
   141,156/194,812.56 = 81,540/x
3. Step 3: Cross multiply
   141,156x = 194,812.56 × 81,540
4. Step 4: Simplify right side
   141,156x = 15,885,016,142.40
5. Step 5: Solve for x
   x = 15,885,016,142.40/141,156
6. Step 6: Final answer
   x = 112,535.18