Finding the Fourth Proportional to 10,861.25, 14,988.56 and 6,081.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,861.25 : 14,988.56 = 6,081.40 : x
2. Step 2: Convert to fraction form
   10,861.25/14,988.56 = 6,081.40/x
3. Step 3: Cross multiply
   10,861.25x = 14,988.56 × 6,081.40
4. Step 4: Simplify right side
   10,861.25x = 91,151,406.52
5. Step 5: Solve for x
   x = 91,151,406.52/10,861.25
6. Step 6: Final answer
   x = 8,392.35