Finding the Fourth Proportional to 37,632.80, 51,933.86 and 20,638.59

Step by Step Solution

1. Step 1: Write the proportion equation
   37,632.80 : 51,933.86 = 20,638.59 : x
2. Step 2: Convert to fraction form
   37,632.80/51,933.86 = 20,638.59/x
3. Step 3: Cross multiply
   37,632.80x = 51,933.86 × 20,638.59
4. Step 4: Simplify right side
   37,632.80x = 1,071,841,540.46
5. Step 5: Solve for x
   x = 1,071,841,540.46/37,632.80
6. Step 6: Final answer
   x = 28,481.58