Finding the Fourth Proportional to 9,141.30, 12,615.02 and 4,949.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.30 : 12,615.02 = 4,949.55 : x
2. Step 2: Convert to fraction form
   9,141.30/12,615.02 = 4,949.55/x
3. Step 3: Cross multiply
   9,141.30x = 12,615.02 × 4,949.55
4. Step 4: Simplify right side
   9,141.30x = 62,438,684.61
5. Step 5: Solve for x
   x = 62,438,684.61/9,141.30
6. Step 6: Final answer
   x = 6,830.39