Finding the Fourth Proportional to 37,120.48, 55,690.17 and 12,162.22

Step by Step Solution

1. Step 1: Write the proportion equation
   37,120.48 : 55,690.17 = 12,162.22 : x
2. Step 2: Convert to fraction form
   37,120.48/55,690.17 = 12,162.22/x
3. Step 3: Cross multiply
   37,120.48x = 55,690.17 × 12,162.22
4. Step 4: Simplify right side
   37,120.48x = 677,316,099.38
5. Step 5: Solve for x
   x = 677,316,099.38/37,120.48
6. Step 6: Final answer
   x = 18,246.43