Finding the Fourth Proportional to 6,402.56, 8,831.94 and 3,749.45

Step by Step Solution

1. Step 1: Write the proportion equation
   6,402.56 : 8,831.94 = 3,749.45 : x
2. Step 2: Convert to fraction form
   6,402.56/8,831.94 = 3,749.45/x
3. Step 3: Cross multiply
   6,402.56x = 8,831.94 × 3,749.45
4. Step 4: Simplify right side
   6,402.56x = 33,114,917.43
5. Step 5: Solve for x
   x = 33,114,917.43/6,402.56
6. Step 6: Final answer
   x = 5,172.14