Finding the Fourth Proportional to 22,580.30, 31,162.57 and 12,509.67

Step by Step Solution

1. Step 1: Write the proportion equation
   22,580.30 : 31,162.57 = 12,509.67 : x
2. Step 2: Convert to fraction form
   22,580.30/31,162.57 = 12,509.67/x
3. Step 3: Cross multiply
   22,580.30x = 31,162.57 × 12,509.67
4. Step 4: Simplify right side
   22,580.30x = 389,833,353.89
5. Step 5: Solve for x
   x = 389,833,353.89/22,580.30
6. Step 6: Final answer
   x = 17,264.31