Finding the Fourth Proportional to 23,292.18, 32,141.57 and 13,220.83

Step by Step Solution

1. Step 1: Write the proportion equation
   23,292.18 : 32,141.57 = 13,220.83 : x
2. Step 2: Convert to fraction form
   23,292.18/32,141.57 = 13,220.83/x
3. Step 3: Cross multiply
   23,292.18x = 32,141.57 × 13,220.83
4. Step 4: Simplify right side
   23,292.18x = 424,938,185.60
5. Step 5: Solve for x
   x = 424,938,185.60/23,292.18
6. Step 6: Final answer
   x = 18,243.81