Finding the Fourth Proportional to 12,881.16, 17,778.82 and 7,579.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,881.16 : 17,778.82 = 7,579.04 : x
2. Step 2: Convert to fraction form
   12,881.16/17,778.82 = 7,579.04/x
3. Step 3: Cross multiply
   12,881.16x = 17,778.82 × 7,579.04
4. Step 4: Simplify right side
   12,881.16x = 134,746,387.93
5. Step 5: Solve for x
   x = 134,746,387.93/12,881.16
6. Step 6: Final answer
   x = 10,460.73