Finding the Fourth Proportional to 7,443.58, 10,272.12 and 4,086.44

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.58 : 10,272.12 = 4,086.44 : x
2. Step 2: Convert to fraction form
   7,443.58/10,272.12 = 4,086.44/x
3. Step 3: Cross multiply
   7,443.58x = 10,272.12 × 4,086.44
4. Step 4: Simplify right side
   7,443.58x = 41,976,402.05
5. Step 5: Solve for x
   x = 41,976,402.05/7,443.58
6. Step 6: Final answer
   x = 5,639.28