Finding the Fourth Proportional to 12,763.34, 17,608.48 and 9,414.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,763.34 : 17,608.48 = 9,414.10 : x
2. Step 2: Convert to fraction form
   12,763.34/17,608.48 = 9,414.10/x
3. Step 3: Cross multiply
   12,763.34x = 17,608.48 × 9,414.10
4. Step 4: Simplify right side
   12,763.34x = 165,767,991.57
5. Step 5: Solve for x
   x = 165,767,991.57/12,763.34
6. Step 6: Final answer
   x = 12,987.82