Finding the Fourth Proportional to 37,584.72, 51,866.94 and 20,817.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,584.72 : 51,866.94 = 20,817.72 : x
2. Step 2: Convert to fraction form
   37,584.72/51,866.94 = 20,817.72/x
3. Step 3: Cross multiply
   37,584.72x = 51,866.94 × 20,817.72
4. Step 4: Simplify right side
   37,584.72x = 1,079,751,434.18
5. Step 5: Solve for x
   x = 1,079,751,434.18/37,584.72
6. Step 6: Final answer
   x = 28,728.47