Finding the Fourth Proportional to 16,586.50, 22,889.38 and 9,134.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,586.50 : 22,889.38 = 9,134.50 : x
2. Step 2: Convert to fraction form
   16,586.50/22,889.38 = 9,134.50/x
3. Step 3: Cross multiply
   16,586.50x = 22,889.38 × 9,134.50
4. Step 4: Simplify right side
   16,586.50x = 209,083,041.61
5. Step 5: Solve for x
   x = 209,083,041.61/16,586.50
6. Step 6: Final answer
   x = 12,605.62