Finding the Fourth Proportional to 22,580.65, 31,160.42 and 12,371.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,580.65 : 31,160.42 = 12,371.50 : x
2. Step 2: Convert to fraction form
   22,580.65/31,160.42 = 12,371.50/x
3. Step 3: Cross multiply
   22,580.65x = 31,160.42 × 12,371.50
4. Step 4: Simplify right side
   22,580.65x = 385,501,074.17
5. Step 5: Solve for x
   x = 385,501,074.17/22,580.65
6. Step 6: Final answer
   x = 17,072.19