Finding the Fourth Proportional to 12,581.78, 17,366.49 and 10,081.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,581.78 : 17,366.49 = 10,081.34 : x
2. Step 2: Convert to fraction form
   12,581.78/17,366.49 = 10,081.34/x
3. Step 3: Cross multiply
   12,581.78x = 17,366.49 × 10,081.34
4. Step 4: Simplify right side
   12,581.78x = 175,077,490.30
5. Step 5: Solve for x
   x = 175,077,490.30/12,581.78
6. Step 6: Final answer
   x = 13,915.16