Finding the Fourth Proportional to 23,073.91, 31,842.42 and 13,520.67

Step by Step Solution

1. Step 1: Write the proportion equation
   23,073.91 : 31,842.42 = 13,520.67 : x
2. Step 2: Convert to fraction form
   23,073.91/31,842.42 = 13,520.67/x
3. Step 3: Cross multiply
   23,073.91x = 31,842.42 × 13,520.67
4. Step 4: Simplify right side
   23,073.91x = 430,530,861.82
5. Step 5: Solve for x
   x = 430,530,861.82/23,073.91
6. Step 6: Final answer
   x = 18,658.77