Finding the Fourth Proportional to 40,510.69, 60,787.37 and 20,789.25

Step by Step Solution

1. Step 1: Write the proportion equation
   40,510.69 : 60,787.37 = 20,789.25 : x
2. Step 2: Convert to fraction form
   40,510.69/60,787.37 = 20,789.25/x
3. Step 3: Cross multiply
   40,510.69x = 60,787.37 × 20,789.25
4. Step 4: Simplify right side
   40,510.69x = 1,263,723,579.81
5. Step 5: Solve for x
   x = 1,263,723,579.81/40,510.69
6. Step 6: Final answer
   x = 31,194.82