Finding the Fourth Proportional to 14,741.86, 22,112.82 and 12,139.34

Step by Step Solution

1. Step 1: Write the proportion equation
   14,741.86 : 22,112.82 = 12,139.34 : x
2. Step 2: Convert to fraction form
   14,741.86/22,112.82 = 12,139.34/x
3. Step 3: Cross multiply
   14,741.86x = 22,112.82 × 12,139.34
4. Step 4: Simplify right side
   14,741.86x = 268,435,040.34
5. Step 5: Solve for x
   x = 268,435,040.34/14,741.86
6. Step 6: Final answer
   x = 18,209.03