Finding the Fourth Proportional to 16,623.31, 22,940.30 and 9,069.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,623.31 : 22,940.30 = 9,069.70 : x
2. Step 2: Convert to fraction form
   16,623.31/22,940.30 = 9,069.70/x
3. Step 3: Cross multiply
   16,623.31x = 22,940.30 × 9,069.70
4. Step 4: Simplify right side
   16,623.31x = 208,061,638.91
5. Step 5: Solve for x
   x = 208,061,638.91/16,623.31
6. Step 6: Final answer
   x = 12,516.26