Finding the Fourth Proportional to 5,500.32, 7,590.72 and 3,509.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,500.32 : 7,590.72 = 3,509.28 : x
2. Step 2: Convert to fraction form
   5,500.32/7,590.72 = 3,509.28/x
3. Step 3: Cross multiply
   5,500.32x = 7,590.72 × 3,509.28
4. Step 4: Simplify right side
   5,500.32x = 26,637,961.88
5. Step 5: Solve for x
   x = 26,637,961.88/5,500.32
6. Step 6: Final answer
   x = 4,842.98