Finding the Fourth Proportional to 12,883.48, 17,778.72 and 7,294.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,883.48 : 17,778.72 = 7,294.48 : x
2. Step 2: Convert to fraction form
   12,883.48/17,778.72 = 7,294.48/x
3. Step 3: Cross multiply
   12,883.48x = 17,778.72 × 7,294.48
4. Step 4: Simplify right side
   12,883.48x = 129,686,517.47
5. Step 5: Solve for x
   x = 129,686,517.47/12,883.48
6. Step 6: Final answer
   x = 10,066.11