Finding the Fourth Proportional to 60,619.10, 83,691.72 and 39,127.76

Step by Step Solution

1. Step 1: Write the proportion equation
   60,619.10 : 83,691.72 = 39,127.76 : x
2. Step 2: Convert to fraction form
   60,619.10/83,691.72 = 39,127.76/x
3. Step 3: Cross multiply
   60,619.10x = 83,691.72 × 39,127.76
4. Step 4: Simplify right side
   60,619.10x = 3,274,669,534.15
5. Step 5: Solve for x
   x = 3,274,669,534.15/60,619.10
6. Step 6: Final answer
   x = 54,020.42