Finding the Fourth Proportional to 16,191.72, 22,340.52 and 12,418.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,191.72 : 22,340.52 = 12,418.74 : x
2. Step 2: Convert to fraction form
   16,191.72/22,340.52 = 12,418.74/x
3. Step 3: Cross multiply
   16,191.72x = 22,340.52 × 12,418.74
4. Step 4: Simplify right side
   16,191.72x = 277,441,109.34
5. Step 5: Solve for x
   x = 277,441,109.34/16,191.72
6. Step 6: Final answer
   x = 17,134.75