Finding the Fourth Proportional to 60,715.58, 83,826.52 and 39,215

Step by Step Solution

1. Step 1: Write the proportion equation
   60,715.58 : 83,826.52 = 39,215 : x
2. Step 2: Convert to fraction form
   60,715.58/83,826.52 = 39,215/x
3. Step 3: Cross multiply
   60,715.58x = 83,826.52 × 39,215
4. Step 4: Simplify right side
   60,715.58x = 3,287,256,981.80
5. Step 5: Solve for x
   x = 3,287,256,981.80/60,715.58
6. Step 6: Final answer
   x = 54,141.90