Finding the Fourth Proportional to 33,457.12, 50,186.72 and 12,402.42

Step by Step Solution

1. Step 1: Write the proportion equation
   33,457.12 : 50,186.72 = 12,402.42 : x
2. Step 2: Convert to fraction form
   33,457.12/50,186.72 = 12,402.42/x
3. Step 3: Cross multiply
   33,457.12x = 50,186.72 × 12,402.42
4. Step 4: Simplify right side
   33,457.12x = 622,436,779.86
5. Step 5: Solve for x
   x = 622,436,779.86/33,457.12
6. Step 6: Final answer
   x = 18,604.02