Finding the Fourth Proportional to 37,659.62, 51,970.84 and 20,665.56

Step by Step Solution

1. Step 1: Write the proportion equation
   37,659.62 : 51,970.84 = 20,665.56 : x
2. Step 2: Convert to fraction form
   37,659.62/51,970.84 = 20,665.56/x
3. Step 3: Cross multiply
   37,659.62x = 51,970.84 × 20,665.56
4. Step 4: Simplify right side
   37,659.62x = 1,074,006,512.27
5. Step 5: Solve for x
   x = 1,074,006,512.27/37,659.62
6. Step 6: Final answer
   x = 28,518.78