Finding the Fourth Proportional to 12,440.45, 17,166.51 and 7,061.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,440.45 : 17,166.51 = 7,061.18 : x
2. Step 2: Convert to fraction form
   12,440.45/17,166.51 = 7,061.18/x
3. Step 3: Cross multiply
   12,440.45x = 17,166.51 × 7,061.18
4. Step 4: Simplify right side
   12,440.45x = 121,215,731.25
5. Step 5: Solve for x
   x = 121,215,731.25/12,440.45
6. Step 6: Final answer
   x = 9,743.68