Finding the Fourth Proportional to 33,380.10, 50,063.58 and 12,320.10

Step by Step Solution

1. Step 1: Write the proportion equation
   33,380.10 : 50,063.58 = 12,320.10 : x
2. Step 2: Convert to fraction form
   33,380.10/50,063.58 = 12,320.10/x
3. Step 3: Cross multiply
   33,380.10x = 50,063.58 × 12,320.10
4. Step 4: Simplify right side
   33,380.10x = 616,788,311.96
5. Step 5: Solve for x
   x = 616,788,311.96/33,380.10
6. Step 6: Final answer
   x = 18,477.73