Finding the Fourth Proportional to 12,179.72, 18,275.38 and 8,437.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,179.72 : 18,275.38 = 8,437.27 : x
2. Step 2: Convert to fraction form
   12,179.72/18,275.38 = 8,437.27/x
3. Step 3: Cross multiply
   12,179.72x = 18,275.38 × 8,437.27
4. Step 4: Simplify right side
   12,179.72x = 154,194,224.04
5. Step 5: Solve for x
   x = 154,194,224.04/12,179.72
6. Step 6: Final answer
   x = 12,659.92