Finding the Fourth Proportional to 22,050, 30,429.36 and 12,623.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,050 : 30,429.36 = 12,623.76 : x
2. Step 2: Convert to fraction form
   22,050/30,429.36 = 12,623.76/x
3. Step 3: Cross multiply
   22,050x = 30,429.36 × 12,623.76
4. Step 4: Simplify right side
   22,050x = 384,132,937.59
5. Step 5: Solve for x
   x = 384,132,937.59/22,050
6. Step 6: Final answer
   x = 17,420.99