Finding the Fourth Proportional to 6,443.76, 8,892.12 and 3,649.26

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.76 : 8,892.12 = 3,649.26 : x
2. Step 2: Convert to fraction form
   6,443.76/8,892.12 = 3,649.26/x
3. Step 3: Cross multiply
   6,443.76x = 8,892.12 × 3,649.26
4. Step 4: Simplify right side
   6,443.76x = 32,449,657.83
5. Step 5: Solve for x
   x = 32,449,657.83/6,443.76
6. Step 6: Final answer
   x = 5,035.83