Finding the Fourth Proportional to 5,543.81, 8,315.72 and 3,698.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,543.81 : 8,315.72 = 3,698.52 : x
2. Step 2: Convert to fraction form
   5,543.81/8,315.72 = 3,698.52/x
3. Step 3: Cross multiply
   5,543.81x = 8,315.72 × 3,698.52
4. Step 4: Simplify right side
   5,543.81x = 30,755,838.24
5. Step 5: Solve for x
   x = 30,755,838.24/5,543.81
6. Step 6: Final answer
   x = 5,547.79