Finding the Fourth Proportional to 37,287.50, 51,457.84 and 20,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,287.50 : 51,457.84 = 20,520.50 : x
2. Step 2: Convert to fraction form
   37,287.50/51,457.84 = 20,520.50/x
3. Step 3: Cross multiply
   37,287.50x = 51,457.84 × 20,520.50
4. Step 4: Simplify right side
   37,287.50x = 1,055,940,605.72
5. Step 5: Solve for x
   x = 1,055,940,605.72/37,287.50
6. Step 6: Final answer
   x = 28,318.89