Finding the Fourth Proportional to 60,711.31, 83,781.61 and 35,560.81

Step by Step Solution

1. Step 1: Write the proportion equation
   60,711.31 : 83,781.61 = 35,560.81 : x
2. Step 2: Convert to fraction form
   60,711.31/83,781.61 = 35,560.81/x
3. Step 3: Cross multiply
   60,711.31x = 83,781.61 × 35,560.81
4. Step 4: Simplify right side
   60,711.31x = 2,979,341,914.70
5. Step 5: Solve for x
   x = 2,979,341,914.70/60,711.31
6. Step 6: Final answer
   x = 49,073.92