Finding the Fourth Proportional to 5,404.64, 8,100.50 and 3,531.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.64 : 8,100.50 = 3,531.43 : x
2. Step 2: Convert to fraction form
   5,404.64/8,100.50 = 3,531.43/x
3. Step 3: Cross multiply
   5,404.64x = 8,100.50 × 3,531.43
4. Step 4: Simplify right side
   5,404.64x = 28,606,310.81
5. Step 5: Solve for x
   x = 28,606,310.81/5,404.64
6. Step 6: Final answer
   x = 5,292.91