Finding the Fourth Proportional to 5,499.63, 7,587.60 and 3,109.32

Step by Step Solution

1. Step 1: Write the proportion equation
   5,499.63 : 7,587.60 = 3,109.32 : x
2. Step 2: Convert to fraction form
   5,499.63/7,587.60 = 3,109.32/x
3. Step 3: Cross multiply
   5,499.63x = 7,587.60 × 3,109.32
4. Step 4: Simplify right side
   5,499.63x = 23,592,276.43
5. Step 5: Solve for x
   x = 23,592,276.43/5,499.63
6. Step 6: Final answer
   x = 4,289.79