Finding the Fourth Proportional to 33,697.18, 50,552.97 and 12,920.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,697.18 : 50,552.97 = 12,920.50 : x
2. Step 2: Convert to fraction form
   33,697.18/50,552.97 = 12,920.50/x
3. Step 3: Cross multiply
   33,697.18x = 50,552.97 × 12,920.50
4. Step 4: Simplify right side
   33,697.18x = 653,169,648.89
5. Step 5: Solve for x
   x = 653,169,648.89/33,697.18
6. Step 6: Final answer
   x = 19,383.51