Finding the Fourth Proportional to 59,658.50, 89,488.29 and 18,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,658.50 : 89,488.29 = 18,105.50 : x
2. Step 2: Convert to fraction form
   59,658.50/89,488.29 = 18,105.50/x
3. Step 3: Cross multiply
   59,658.50x = 89,488.29 × 18,105.50
4. Step 4: Simplify right side
   59,658.50x = 1,620,230,234.60
5. Step 5: Solve for x
   x = 1,620,230,234.60/59,658.50
6. Step 6: Final answer
   x = 27,158.41