Finding the Fourth Proportional to 22,570.92, 31,150.80 and 13,623.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,570.92 : 31,150.80 = 13,623.48 : x
2. Step 2: Convert to fraction form
   22,570.92/31,150.80 = 13,623.48/x
3. Step 3: Cross multiply
   22,570.92x = 31,150.80 × 13,623.48
4. Step 4: Simplify right side
   22,570.92x = 424,382,300.78
5. Step 5: Solve for x
   x = 424,382,300.78/22,570.92
6. Step 6: Final answer
   x = 18,802.17