Finding the Fourth Proportional to 5,663.40, 8,498.56 and 3,580.53

Step by Step Solution

1. Step 1: Write the proportion equation
   5,663.40 : 8,498.56 = 3,580.53 : x
2. Step 2: Convert to fraction form
   5,663.40/8,498.56 = 3,580.53/x
3. Step 3: Cross multiply
   5,663.40x = 8,498.56 × 3,580.53
4. Step 4: Simplify right side
   5,663.40x = 30,429,349.04
5. Step 5: Solve for x
   x = 30,429,349.04/5,663.40
6. Step 6: Final answer
   x = 5,372.98