Finding the Fourth Proportional to 8,081.16, 12,121.98 and 3,150.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.16 : 12,121.98 = 3,150.60 : x
2. Step 2: Convert to fraction form
   8,081.16/12,121.98 = 3,150.60/x
3. Step 3: Cross multiply
   8,081.16x = 12,121.98 × 3,150.60
4. Step 4: Simplify right side
   8,081.16x = 38,191,510.19
5. Step 5: Solve for x
   x = 38,191,510.19/8,081.16
6. Step 6: Final answer
   x = 4,725.99