Finding the Fourth Proportional to 9,141.32, 12,615.05 and 4,949.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.32 : 12,615.05 = 4,949.57 : x
2. Step 2: Convert to fraction form
   9,141.32/12,615.05 = 4,949.57/x
3. Step 3: Cross multiply
   9,141.32x = 12,615.05 × 4,949.57
4. Step 4: Simplify right side
   9,141.32x = 62,439,116.94
5. Step 5: Solve for x
   x = 62,439,116.94/9,141.32
6. Step 6: Final answer
   x = 6,830.42