Finding the Fourth Proportional to 22,334.40, 30,814.56 and 12,899.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,334.40 : 30,814.56 = 12,899.52 : x
2. Step 2: Convert to fraction form
   22,334.40/30,814.56 = 12,899.52/x
3. Step 3: Cross multiply
   22,334.40x = 30,814.56 × 12,899.52
4. Step 4: Simplify right side
   22,334.40x = 397,493,033.01
5. Step 5: Solve for x
   x = 397,493,033.01/22,334.40
6. Step 6: Final answer
   x = 17,797.35