Finding the Fourth Proportional to 37,322.30, 51,502.42 and 20,555.30

Step by Step Solution

1. Step 1: Write the proportion equation
   37,322.30 : 51,502.42 = 20,555.30 : x
2. Step 2: Convert to fraction form
   37,322.30/51,502.42 = 20,555.30/x
3. Step 3: Cross multiply
   37,322.30x = 51,502.42 × 20,555.30
4. Step 4: Simplify right side
   37,322.30x = 1,058,647,693.83
5. Step 5: Solve for x
   x = 1,058,647,693.83/37,322.30
6. Step 6: Final answer
   x = 28,365.02