Finding the Fourth Proportional to 8,080.88, 12,117.24 and 3,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,080.88 : 12,117.24 = 3,146.72 : x
2. Step 2: Convert to fraction form
   8,080.88/12,117.24 = 3,146.72/x
3. Step 3: Cross multiply
   8,080.88x = 12,117.24 × 3,146.72
4. Step 4: Simplify right side
   8,080.88x = 38,129,561.45
5. Step 5: Solve for x
   x = 38,129,561.45/8,080.88
6. Step 6: Final answer
   x = 4,718.49