Finding the Fourth Proportional to 10,549.61, 15,826.47 and 3,153.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,549.61 : 15,826.47 = 3,153.91 : x
2. Step 2: Convert to fraction form
   10,549.61/15,826.47 = 3,153.91/x
3. Step 3: Cross multiply
   10,549.61x = 15,826.47 × 3,153.91
4. Step 4: Simplify right side
   10,549.61x = 49,915,222.43
5. Step 5: Solve for x
   x = 49,915,222.43/10,549.61
6. Step 6: Final answer
   x = 4,731.47