Finding the Fourth Proportional to 10,561.61, 15,841.91 and 3,541.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,561.61 : 15,841.91 = 3,541.73 : x
2. Step 2: Convert to fraction form
   10,561.61/15,841.91 = 3,541.73/x
3. Step 3: Cross multiply
   10,561.61x = 15,841.91 × 3,541.73
4. Step 4: Simplify right side
   10,561.61x = 56,107,697.55
5. Step 5: Solve for x
   x = 56,107,697.55/10,561.61
6. Step 6: Final answer
   x = 5,312.42