Finding the Fourth Proportional to 10,574.34, 15,854.78 and 9,008.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,574.34 : 15,854.78 = 9,008.18 : x
2. Step 2: Convert to fraction form
   10,574.34/15,854.78 = 9,008.18/x
3. Step 3: Cross multiply
   10,574.34x = 15,854.78 × 9,008.18
4. Step 4: Simplify right side
   10,574.34x = 142,822,712.10
5. Step 5: Solve for x
   x = 142,822,712.10/10,574.34
6. Step 6: Final answer
   x = 13,506.54