Finding the Fourth Proportional to 22,052.12, 30,429.72 and 12,490.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,052.12 : 30,429.72 = 12,490.10 : x
2. Step 2: Convert to fraction form
   22,052.12/30,429.72 = 12,490.10/x
3. Step 3: Cross multiply
   22,052.12x = 30,429.72 × 12,490.10
4. Step 4: Simplify right side
   22,052.12x = 380,070,093.62
5. Step 5: Solve for x
   x = 380,070,093.62/22,052.12
6. Step 6: Final answer
   x = 17,235.09