Finding the Fourth Proportional to 13,264.10, 18,298.31 and 7,949.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,264.10 : 18,298.31 = 7,949.69 : x
2. Step 2: Convert to fraction form
   13,264.10/18,298.31 = 7,949.69/x
3. Step 3: Cross multiply
   13,264.10x = 18,298.31 × 7,949.69
4. Step 4: Simplify right side
   13,264.10x = 145,465,760.78
5. Step 5: Solve for x
   x = 145,465,760.78/13,264.10
6. Step 6: Final answer
   x = 10,966.88