Finding the Fourth Proportional to 11,081.52, 16,624.71 and 5,238.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.52 : 16,624.71 = 5,238.18 : x
2. Step 2: Convert to fraction form
   11,081.52/16,624.71 = 5,238.18/x
3. Step 3: Cross multiply
   11,081.52x = 16,624.71 × 5,238.18
4. Step 4: Simplify right side
   11,081.52x = 87,083,223.43
5. Step 5: Solve for x
   x = 87,083,223.43/11,081.52
6. Step 6: Final answer
   x = 7,858.42