Finding the Fourth Proportional to 12,226.56, 16,856.91 and 12,061.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,226.56 : 16,856.91 = 12,061.32 : x
2. Step 2: Convert to fraction form
   12,226.56/16,856.91 = 12,061.32/x
3. Step 3: Cross multiply
   12,226.56x = 16,856.91 × 12,061.32
4. Step 4: Simplify right side
   12,226.56x = 203,316,585.72
5. Step 5: Solve for x
   x = 203,316,585.72/12,226.56
6. Step 6: Final answer
   x = 16,629.09