Finding the Fourth Proportional to 22,889.02, 31,586.70 and 12,817.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,889.02 : 31,586.70 = 12,817.48 : x
2. Step 2: Convert to fraction form
   22,889.02/31,586.70 = 12,817.48/x
3. Step 3: Cross multiply
   22,889.02x = 31,586.70 × 12,817.48
4. Step 4: Simplify right side
   22,889.02x = 404,861,895.52
5. Step 5: Solve for x
   x = 404,861,895.52/22,889.02
6. Step 6: Final answer
   x = 17,688.04