Finding the Fourth Proportional to 10,541.58, 15,814.27 and 3,520.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,541.58 : 15,814.27 = 3,520.90 : x
2. Step 2: Convert to fraction form
   10,541.58/15,814.27 = 3,520.90/x
3. Step 3: Cross multiply
   10,541.58x = 15,814.27 × 3,520.90
4. Step 4: Simplify right side
   10,541.58x = 55,680,487.41
5. Step 5: Solve for x
   x = 55,680,487.41/10,541.58
6. Step 6: Final answer
   x = 5,281.99