Finding the Fourth Proportional to 8,648.55, 11,930.64 and 5,061.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,648.55 : 11,930.64 = 5,061.15 : x
2. Step 2: Convert to fraction form
   8,648.55/11,930.64 = 5,061.15/x
3. Step 3: Cross multiply
   8,648.55x = 11,930.64 × 5,061.15
4. Step 4: Simplify right side
   8,648.55x = 60,382,801.12
5. Step 5: Solve for x
   x = 60,382,801.12/8,648.55
6. Step 6: Final answer
   x = 6,981.84