Finding the Fourth Proportional to 8,061.40, 12,098.76 and 4,115.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,061.40 : 12,098.76 = 4,115.57 : x
2. Step 2: Convert to fraction form
   8,061.40/12,098.76 = 4,115.57/x
3. Step 3: Cross multiply
   8,061.40x = 12,098.76 × 4,115.57
4. Step 4: Simplify right side
   8,061.40x = 49,793,293.69
5. Step 5: Solve for x
   x = 49,793,293.69/8,061.40
6. Step 6: Final answer
   x = 6,176.76