Finding the Fourth Proportional to 6,401.86, 8,831.01 and 3,748.75

Step by Step Solution

1. Step 1: Write the proportion equation
   6,401.86 : 8,831.01 = 3,748.75 : x
2. Step 2: Convert to fraction form
   6,401.86/8,831.01 = 3,748.75/x
3. Step 3: Cross multiply
   6,401.86x = 8,831.01 × 3,748.75
4. Step 4: Simplify right side
   6,401.86x = 33,105,248.74
5. Step 5: Solve for x
   x = 33,105,248.74/6,401.86
6. Step 6: Final answer
   x = 5,171.19