Finding the Fourth Proportional to 37,404.72, 51,617.16 and 20,637.36

Step by Step Solution

1. Step 1: Write the proportion equation
   37,404.72 : 51,617.16 = 20,637.36 : x
2. Step 2: Convert to fraction form
   37,404.72/51,617.16 = 20,637.36/x
3. Step 3: Cross multiply
   37,404.72x = 51,617.16 × 20,637.36
4. Step 4: Simplify right side
   37,404.72x = 1,065,241,913.10
5. Step 5: Solve for x
   x = 1,065,241,913.10/37,404.72
6. Step 6: Final answer
   x = 28,478.81