Finding the Fourth Proportional to 17,724.48, 26,590.24 and 5,244.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,724.48 : 26,590.24 = 5,244.72 : x
2. Step 2: Convert to fraction form
   17,724.48/26,590.24 = 5,244.72/x
3. Step 3: Cross multiply
   17,724.48x = 26,590.24 × 5,244.72
4. Step 4: Simplify right side
   17,724.48x = 139,458,363.53
5. Step 5: Solve for x
   x = 139,458,363.53/17,724.48
6. Step 6: Final answer
   x = 7,868.12