Finding the Fourth Proportional to 12,862.82, 17,745.06 and 7,555.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,862.82 : 17,745.06 = 7,555.25 : x
2. Step 2: Convert to fraction form
   12,862.82/17,745.06 = 7,555.25/x
3. Step 3: Cross multiply
   12,862.82x = 17,745.06 × 7,555.25
4. Step 4: Simplify right side
   12,862.82x = 134,068,275.84
5. Step 5: Solve for x
   x = 134,068,275.84/12,862.82
6. Step 6: Final answer
   x = 10,422.93