Finding the Fourth Proportional to 12,525.18, 17,290.71 and 7,816.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,525.18 : 17,290.71 = 7,816.38 : x
2. Step 2: Convert to fraction form
   12,525.18/17,290.71 = 7,816.38/x
3. Step 3: Cross multiply
   12,525.18x = 17,290.71 × 7,816.38
4. Step 4: Simplify right side
   12,525.18x = 135,150,759.83
5. Step 5: Solve for x
   x = 135,150,759.83/12,525.18
6. Step 6: Final answer
   x = 10,790.32