Finding the Fourth Proportional to 17,277.76, 25,920.48 and 5,590.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,277.76 : 25,920.48 = 5,590.72 : x
2. Step 2: Convert to fraction form
   17,277.76/25,920.48 = 5,590.72/x
3. Step 3: Cross multiply
   17,277.76x = 25,920.48 × 5,590.72
4. Step 4: Simplify right side
   17,277.76x = 144,914,145.95
5. Step 5: Solve for x
   x = 144,914,145.95/17,277.76
6. Step 6: Final answer
   x = 8,387.32