Finding the Fourth Proportional to 59,787.39, 89,685.18 and 20,339.37

Step by Step Solution

1. Step 1: Write the proportion equation
   59,787.39 : 89,685.18 = 20,339.37 : x
2. Step 2: Convert to fraction form
   59,787.39/89,685.18 = 20,339.37/x
3. Step 3: Cross multiply
   59,787.39x = 89,685.18 × 20,339.37
4. Step 4: Simplify right side
   59,787.39x = 1,824,140,059.54
5. Step 5: Solve for x
   x = 1,824,140,059.54/59,787.39
6. Step 6: Final answer
   x = 30,510.45