Finding the Fourth Proportional to 10,641.72, 14,684.54 and 5,861.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,641.72 : 14,684.54 = 5,861.60 : x
2. Step 2: Convert to fraction form
   10,641.72/14,684.54 = 5,861.60/x
3. Step 3: Cross multiply
   10,641.72x = 14,684.54 × 5,861.60
4. Step 4: Simplify right side
   10,641.72x = 86,074,899.66
5. Step 5: Solve for x
   x = 86,074,899.66/10,641.72
6. Step 6: Final answer
   x = 8,088.44