Finding the Fourth Proportional to 41,742.72, 62,623.35 and 12,162.78

Step by Step Solution

1. Step 1: Write the proportion equation
   41,742.72 : 62,623.35 = 12,162.78 : x
2. Step 2: Convert to fraction form
   41,742.72/62,623.35 = 12,162.78/x
3. Step 3: Cross multiply
   41,742.72x = 62,623.35 × 12,162.78
4. Step 4: Simplify right side
   41,742.72x = 761,674,028.91
5. Step 5: Solve for x
   x = 761,674,028.91/41,742.72
6. Step 6: Final answer
   x = 18,246.87