Finding the Fourth Proportional to 37,185.28, 55,784.76 and 12,226.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,185.28 : 55,784.76 = 12,226.72 : x
2. Step 2: Convert to fraction form
   37,185.28/55,784.76 = 12,226.72/x
3. Step 3: Cross multiply
   37,185.28x = 55,784.76 × 12,226.72
4. Step 4: Simplify right side
   37,185.28x = 682,064,640.79
5. Step 5: Solve for x
   x = 682,064,640.79/37,185.28
6. Step 6: Final answer
   x = 18,342.33