Finding the Fourth Proportional to 37,412.50, 51,629.32 and 20,645.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,412.50 : 51,629.32 = 20,645.50 : x
2. Step 2: Convert to fraction form
   37,412.50/51,629.32 = 20,645.50/x
3. Step 3: Cross multiply
   37,412.50x = 51,629.32 × 20,645.50
4. Step 4: Simplify right side
   37,412.50x = 1,065,913,074.45
5. Step 5: Solve for x
   x = 1,065,913,074.45/37,412.50
6. Step 6: Final answer
   x = 28,490.83