Finding the Fourth Proportional to 12,651.12, 18,973.37 and 3,764.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,651.12 : 18,973.37 = 3,764.06 : x
2. Step 2: Convert to fraction form
   12,651.12/18,973.37 = 3,764.06/x
3. Step 3: Cross multiply
   12,651.12x = 18,973.37 × 3,764.06
4. Step 4: Simplify right side
   12,651.12x = 71,416,789.40
5. Step 5: Solve for x
   x = 71,416,789.40/12,651.12
6. Step 6: Final answer
   x = 5,645.10