Finding the Fourth Proportional to 8,148.79, 12,221.23 and 3,762.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,148.79 : 12,221.23 = 3,762.03 : x
2. Step 2: Convert to fraction form
   8,148.79/12,221.23 = 3,762.03/x
3. Step 3: Cross multiply
   8,148.79x = 12,221.23 × 3,762.03
4. Step 4: Simplify right side
   8,148.79x = 45,976,633.90
5. Step 5: Solve for x
   x = 45,976,633.90/8,148.79
6. Step 6: Final answer
   x = 5,642.14