Finding the Fourth Proportional to 11,498.38, 17,231.97 and 5,250.64

Step by Step Solution

1. Step 1: Write the proportion equation
   11,498.38 : 17,231.97 = 5,250.64 : x
2. Step 2: Convert to fraction form
   11,498.38/17,231.97 = 5,250.64/x
3. Step 3: Cross multiply
   11,498.38x = 17,231.97 × 5,250.64
4. Step 4: Simplify right side
   11,498.38x = 90,478,870.96
5. Step 5: Solve for x
   x = 90,478,870.96/11,498.38
6. Step 6: Final answer
   x = 7,868.84