Finding the Fourth Proportional to 22,052.96, 30,429.44 and 12,621.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,052.96 : 30,429.44 = 12,621.52 : x
2. Step 2: Convert to fraction form
   22,052.96/30,429.44 = 12,621.52/x
3. Step 3: Cross multiply
   22,052.96x = 30,429.44 × 12,621.52
4. Step 4: Simplify right side
   22,052.96x = 384,065,785.55
5. Step 5: Solve for x
   x = 384,065,785.55/22,052.96
6. Step 6: Final answer
   x = 17,415.61