Finding the Fourth Proportional to 12,608.12, 17,398.96 and 7,895

Step by Step Solution

1. Step 1: Write the proportion equation
   12,608.12 : 17,398.96 = 7,895 : x
2. Step 2: Convert to fraction form
   12,608.12/17,398.96 = 7,895/x
3. Step 3: Cross multiply
   12,608.12x = 17,398.96 × 7,895
4. Step 4: Simplify right side
   12,608.12x = 137,364,789.20
5. Step 5: Solve for x
   x = 137,364,789.20/12,608.12
6. Step 6: Final answer
   x = 10,894.95