Finding the Fourth Proportional to 37,078.71, 55,626.27 and 20,430.18

Step by Step Solution

1. Step 1: Write the proportion equation
   37,078.71 : 55,626.27 = 20,430.18 : x
2. Step 2: Convert to fraction form
   37,078.71/55,626.27 = 20,430.18/x
3. Step 3: Cross multiply
   37,078.71x = 55,626.27 × 20,430.18
4. Step 4: Simplify right side
   37,078.71x = 1,136,454,708.83
5. Step 5: Solve for x
   x = 1,136,454,708.83/37,078.71
6. Step 6: Final answer
   x = 30,649.79