Finding the Fourth Proportional to 11,223.18, 16,828.05 and 5,301.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,223.18 : 16,828.05 = 5,301.57 : x
2. Step 2: Convert to fraction form
   11,223.18/16,828.05 = 5,301.57/x
3. Step 3: Cross multiply
   11,223.18x = 16,828.05 × 5,301.57
4. Step 4: Simplify right side
   11,223.18x = 89,215,085.04
5. Step 5: Solve for x
   x = 89,215,085.04/11,223.18
6. Step 6: Final answer
   x = 7,949.18