Finding the Fourth Proportional to 60,080.79, 82,928.84 and 39,677.77

Step by Step Solution

1. Step 1: Write the proportion equation
   60,080.79 : 82,928.84 = 39,677.77 : x
2. Step 2: Convert to fraction form
   60,080.79/82,928.84 = 39,677.77/x
3. Step 3: Cross multiply
   60,080.79x = 82,928.84 × 39,677.77
4. Step 4: Simplify right side
   60,080.79x = 3,290,431,439.89
5. Step 5: Solve for x
   x = 3,290,431,439.89/60,080.79
6. Step 6: Final answer
   x = 54,766.78