Finding the Fourth Proportional to 23,288.67, 32,137.39 and 13,216.90

Step by Step Solution

1. Step 1: Write the proportion equation
   23,288.67 : 32,137.39 = 13,216.90 : x
2. Step 2: Convert to fraction form
   23,288.67/32,137.39 = 13,216.90/x
3. Step 3: Cross multiply
   23,288.67x = 32,137.39 × 13,216.90
4. Step 4: Simplify right side
   23,288.67x = 424,756,669.89
5. Step 5: Solve for x
   x = 424,756,669.89/23,288.67
6. Step 6: Final answer
   x = 18,238.77