Finding the Fourth Proportional to 5,443.35, 7,515.43 and 4,182.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.35 : 7,515.43 = 4,182.15 : x
2. Step 2: Convert to fraction form
   5,443.35/7,515.43 = 4,182.15/x
3. Step 3: Cross multiply
   5,443.35x = 7,515.43 × 4,182.15
4. Step 4: Simplify right side
   5,443.35x = 31,430,655.57
5. Step 5: Solve for x
   x = 31,430,655.57/5,443.35
6. Step 6: Final answer
   x = 5,774.14