Finding the Fourth Proportional to 12,881, 17,775.78 and 7,293.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,881 : 17,775.78 = 7,293.08 : x
2. Step 2: Convert to fraction form
   12,881/17,775.78 = 7,293.08/x
3. Step 3: Cross multiply
   12,881x = 17,775.78 × 7,293.08
4. Step 4: Simplify right side
   12,881x = 129,640,185.60
5. Step 5: Solve for x
   x = 129,640,185.60/12,881
6. Step 6: Final answer
   x = 10,064.45