Finding the Fourth Proportional to 12,525.12, 17,283.65 and 7,147.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,525.12 : 17,283.65 = 7,147.53 : x
2. Step 2: Convert to fraction form
   12,525.12/17,283.65 = 7,147.53/x
3. Step 3: Cross multiply
   12,525.12x = 17,283.65 × 7,147.53
4. Step 4: Simplify right side
   12,525.12x = 123,535,371.15
5. Step 5: Solve for x
   x = 123,535,371.15/12,525.12
6. Step 6: Final answer
   x = 9,863.01