Finding the Fourth Proportional to 5,638.62, 8,453.34 and 3,784.08

Step by Step Solution

1. Step 1: Write the proportion equation
   5,638.62 : 8,453.34 = 3,784.08 : x
2. Step 2: Convert to fraction form
   5,638.62/8,453.34 = 3,784.08/x
3. Step 3: Cross multiply
   5,638.62x = 8,453.34 × 3,784.08
4. Step 4: Simplify right side
   5,638.62x = 31,988,114.83
5. Step 5: Solve for x
   x = 31,988,114.83/5,638.62
6. Step 6: Final answer
   x = 5,673.04