Finding the Fourth Proportional to 8,132.72, 12,189.78 and 3,693.77

Step by Step Solution

1. Step 1: Write the proportion equation
   8,132.72 : 12,189.78 = 3,693.77 : x
2. Step 2: Convert to fraction form
   8,132.72/12,189.78 = 3,693.77/x
3. Step 3: Cross multiply
   8,132.72x = 12,189.78 × 3,693.77
4. Step 4: Simplify right side
   8,132.72x = 45,026,182.72
5. Step 5: Solve for x
   x = 45,026,182.72/8,132.72
6. Step 6: Final answer
   x = 5,536.43