Finding the Fourth Proportional to 37,288.50, 51,458.94 and 20,521.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,288.50 : 51,458.94 = 20,521.50 : x
2. Step 2: Convert to fraction form
   37,288.50/51,458.94 = 20,521.50/x
3. Step 3: Cross multiply
   37,288.50x = 51,458.94 × 20,521.50
4. Step 4: Simplify right side
   37,288.50x = 1,056,014,637.21
5. Step 5: Solve for x
   x = 1,056,014,637.21/37,288.50
6. Step 6: Final answer
   x = 28,320.12