Finding the Fourth Proportional to 8,315.74, 12,477.30 and 3,932.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315.74 : 12,477.30 = 3,932.02 : x
2. Step 2: Convert to fraction form
   8,315.74/12,477.30 = 3,932.02/x
3. Step 3: Cross multiply
   8,315.74x = 12,477.30 × 3,932.02
4. Step 4: Simplify right side
   8,315.74x = 49,060,993.15
5. Step 5: Solve for x
   x = 49,060,993.15/8,315.74
6. Step 6: Final answer
   x = 5,899.77