Finding the Fourth Proportional to 11,499.18, 17,233.17 and 5,251.47

Step by Step Solution

1. Step 1: Write the proportion equation
   11,499.18 : 17,233.17 = 5,251.47 : x
2. Step 2: Convert to fraction form
   11,499.18/17,233.17 = 5,251.47/x
3. Step 3: Cross multiply
   11,499.18x = 17,233.17 × 5,251.47
4. Step 4: Simplify right side
   11,499.18x = 90,499,475.26
5. Step 5: Solve for x
   x = 90,499,475.26/11,499.18
6. Step 6: Final answer
   x = 7,870.08