Finding the Fourth Proportional to 12,505.03, 17,256.37 and 7,198.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,505.03 : 17,256.37 = 7,198.72 : x
2. Step 2: Convert to fraction form
   12,505.03/17,256.37 = 7,198.72/x
3. Step 3: Cross multiply
   12,505.03x = 17,256.37 × 7,198.72
4. Step 4: Simplify right side
   12,505.03x = 124,223,775.85
5. Step 5: Solve for x
   x = 124,223,775.85/12,505.03
6. Step 6: Final answer
   x = 9,933.90