Finding the Fourth Proportional to 22,018.32, 30,375.36 and 13,066.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,018.32 : 30,375.36 = 13,066.20 : x
2. Step 2: Convert to fraction form
   22,018.32/30,375.36 = 13,066.20/x
3. Step 3: Cross multiply
   22,018.32x = 30,375.36 × 13,066.20
4. Step 4: Simplify right side
   22,018.32x = 396,890,528.83
5. Step 5: Solve for x
   x = 396,890,528.83/22,018.32
6. Step 6: Final answer
   x = 18,025.47