Finding the Fourth Proportional to 17,929.57, 26,894.34 and 5,449.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,929.57 : 26,894.34 = 5,449.55 : x
2. Step 2: Convert to fraction form
   17,929.57/26,894.34 = 5,449.55/x
3. Step 3: Cross multiply
   17,929.57x = 26,894.34 × 5,449.55
4. Step 4: Simplify right side
   17,929.57x = 146,562,050.55
5. Step 5: Solve for x
   x = 146,562,050.55/17,929.57
6. Step 6: Final answer
   x = 8,174.32