Finding the Fourth Proportional to 5,538.30, 8,312.16 and 2,764.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,538.30 : 8,312.16 = 2,764.15 : x
2. Step 2: Convert to fraction form
   5,538.30/8,312.16 = 2,764.15/x
3. Step 3: Cross multiply
   5,538.30x = 8,312.16 × 2,764.15
4. Step 4: Simplify right side
   5,538.30x = 22,976,057.06
5. Step 5: Solve for x
   x = 22,976,057.06/5,538.30
6. Step 6: Final answer
   x = 4,148.58