Finding the Fourth Proportional to 8,651.91, 12,973.76 and 3,719.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,651.91 : 12,973.76 = 3,719.54 : x
2. Step 2: Convert to fraction form
   8,651.91/12,973.76 = 3,719.54/x
3. Step 3: Cross multiply
   8,651.91x = 12,973.76 × 3,719.54
4. Step 4: Simplify right side
   8,651.91x = 48,256,419.27
5. Step 5: Solve for x
   x = 48,256,419.27/8,651.91
6. Step 6: Final answer
   x = 5,577.55