Finding the Fourth Proportional to 37,020.20, 51,054.05 and 31,662.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,020.20 : 51,054.05 = 31,662.72 : x
2. Step 2: Convert to fraction form
   37,020.20/51,054.05 = 31,662.72/x
3. Step 3: Cross multiply
   37,020.20x = 51,054.05 × 31,662.72
4. Step 4: Simplify right side
   37,020.20x = 1,616,510,169.17
5. Step 5: Solve for x
   x = 1,616,510,169.17/37,020.20
6. Step 6: Final answer
   x = 43,665.63