Finding the Fourth Proportional to 12,256.82, 18,387.25 and 4,861.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,256.82 : 18,387.25 = 4,861.32 : x
2. Step 2: Convert to fraction form
   12,256.82/18,387.25 = 4,861.32/x
3. Step 3: Cross multiply
   12,256.82x = 18,387.25 × 4,861.32
4. Step 4: Simplify right side
   12,256.82x = 89,386,306.17
5. Step 5: Solve for x
   x = 89,386,306.17/12,256.82
6. Step 6: Final answer
   x = 7,292.78