Finding the Fourth Proportional to 33,664.86, 50,498.15 and 13,938.12

Step by Step Solution

1. Step 1: Write the proportion equation
   33,664.86 : 50,498.15 = 13,938.12 : x
2. Step 2: Convert to fraction form
   33,664.86/50,498.15 = 13,938.12/x
3. Step 3: Cross multiply
   33,664.86x = 50,498.15 × 13,938.12
4. Step 4: Simplify right side
   33,664.86x = 703,849,204.79
5. Step 5: Solve for x
   x = 703,849,204.79/33,664.86
6. Step 6: Final answer
   x = 20,907.53