Finding the Fourth Proportional to 8,131.77, 12,201.30 and 3,746.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.77 : 12,201.30 = 3,746.88 : x
2. Step 2: Convert to fraction form
   8,131.77/12,201.30 = 3,746.88/x
3. Step 3: Cross multiply
   8,131.77x = 12,201.30 × 3,746.88
4. Step 4: Simplify right side
   8,131.77x = 45,716,806.94
5. Step 5: Solve for x
   x = 45,716,806.94/8,131.77
6. Step 6: Final answer
   x = 5,622.00