Finding the Fourth Proportional to 12,023.32, 18,007.62 and 8,308.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,023.32 : 18,007.62 = 8,308.72 : x
2. Step 2: Convert to fraction form
   12,023.32/18,007.62 = 8,308.72/x
3. Step 3: Cross multiply
   12,023.32x = 18,007.62 × 8,308.72
4. Step 4: Simplify right side
   12,023.32x = 149,620,272.45
5. Step 5: Solve for x
   x = 149,620,272.45/12,023.32
6. Step 6: Final answer
   x = 12,444.17