Finding the Fourth Proportional to 5,538.27, 7,633.69 and 3,921.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,538.27 : 7,633.69 = 3,921.10 : x
2. Step 2: Convert to fraction form
   5,538.27/7,633.69 = 3,921.10/x
3. Step 3: Cross multiply
   5,538.27x = 7,633.69 × 3,921.10
4. Step 4: Simplify right side
   5,538.27x = 29,932,476.30
5. Step 5: Solve for x
   x = 29,932,476.30/5,538.27
6. Step 6: Final answer
   x = 5,404.67