Finding the Fourth Proportional to 141,042.72, 194,644.20 and 83,711.76

Step by Step Solution

1. Step 1: Write the proportion equation
   141,042.72 : 194,644.20 = 83,711.76 : x
2. Step 2: Convert to fraction form
   141,042.72/194,644.20 = 83,711.76/x
3. Step 3: Cross multiply
   141,042.72x = 194,644.20 × 83,711.76
4. Step 4: Simplify right side
   141,042.72x = 16,294,008,555.79
5. Step 5: Solve for x
   x = 16,294,008,555.79/141,042.72
6. Step 6: Final answer
   x = 115,525.34