Finding the Fourth Proportional to 12,895.80, 17,796.60 and 9,125.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,895.80 : 17,796.60 = 9,125.76 : x
2. Step 2: Convert to fraction form
   12,895.80/17,796.60 = 9,125.76/x
3. Step 3: Cross multiply
   12,895.80x = 17,796.60 × 9,125.76
4. Step 4: Simplify right side
   12,895.80x = 162,407,500.42
5. Step 5: Solve for x
   x = 162,407,500.42/12,895.80
6. Step 6: Final answer
   x = 12,593.83