Finding the Fourth Proportional to 59,724.98, 89,595.71 and 20,271.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,724.98 : 89,595.71 = 20,271.50 : x
2. Step 2: Convert to fraction form
   59,724.98/89,595.71 = 20,271.50/x
3. Step 3: Cross multiply
   59,724.98x = 89,595.71 × 20,271.50
4. Step 4: Simplify right side
   59,724.98x = 1,816,239,333.91
5. Step 5: Solve for x
   x = 1,816,239,333.91/59,724.98
6. Step 6: Final answer
   x = 30,410.05