Finding the Fourth Proportional to 12,895.14, 17,799.57 and 7,862.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,895.14 : 17,799.57 = 7,862.61 : x
2. Step 2: Convert to fraction form
   12,895.14/17,799.57 = 7,862.61/x
3. Step 3: Cross multiply
   12,895.14x = 17,799.57 × 7,862.61
4. Step 4: Simplify right side
   12,895.14x = 139,951,077.08
5. Step 5: Solve for x
   x = 139,951,077.08/12,895.14
6. Step 6: Final answer
   x = 10,853.01