Finding the Fourth Proportional to 16,279.54, 24,417.96 and 5,185.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,279.54 : 24,417.96 = 5,185.78 : x
2. Step 2: Convert to fraction form
   16,279.54/24,417.96 = 5,185.78/x
3. Step 3: Cross multiply
   16,279.54x = 24,417.96 × 5,185.78
4. Step 4: Simplify right side
   16,279.54x = 126,626,168.61
5. Step 5: Solve for x
   x = 126,626,168.61/16,279.54
6. Step 6: Final answer
   x = 7,778.24