Finding the Fourth Proportional to 11,490.38, 15,858.44 and 7,016.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,490.38 : 15,858.44 = 7,016.72 : x
2. Step 2: Convert to fraction form
   11,490.38/15,858.44 = 7,016.72/x
3. Step 3: Cross multiply
   11,490.38x = 15,858.44 × 7,016.72
4. Step 4: Simplify right side
   11,490.38x = 111,274,255.22
5. Step 5: Solve for x
   x = 111,274,255.22/11,490.38
6. Step 6: Final answer
   x = 9,684.13