Finding the Fourth Proportional to 8,120.48, 12,178.89 and 3,733.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,120.48 : 12,178.89 = 3,733.72 : x
2. Step 2: Convert to fraction form
   8,120.48/12,178.89 = 3,733.72/x
3. Step 3: Cross multiply
   8,120.48x = 12,178.89 × 3,733.72
4. Step 4: Simplify right side
   8,120.48x = 45,472,534.72
5. Step 5: Solve for x
   x = 45,472,534.72/8,120.48
6. Step 6: Final answer
   x = 5,599.74