Finding the Fourth Proportional to 37,288.29, 51,457.82 and 20,521.29

Step by Step Solution

1. Step 1: Write the proportion equation
   37,288.29 : 51,457.82 = 20,521.29 : x
2. Step 2: Convert to fraction form
   37,288.29/51,457.82 = 20,521.29/x
3. Step 3: Cross multiply
   37,288.29x = 51,457.82 × 20,521.29
4. Step 4: Simplify right side
   37,288.29x = 1,055,980,744.38
5. Step 5: Solve for x
   x = 1,055,980,744.38/37,288.29
6. Step 6: Final answer
   x = 28,319.37