Finding the Fourth Proportional to 23,778.51, 32,815.33 and 13,168.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,778.51 : 32,815.33 = 13,168.15 : x
2. Step 2: Convert to fraction form
   23,778.51/32,815.33 = 13,168.15/x
3. Step 3: Cross multiply
   23,778.51x = 32,815.33 × 13,168.15
4. Step 4: Simplify right side
   23,778.51x = 432,116,957.82
5. Step 5: Solve for x
   x = 432,116,957.82/23,778.51
6. Step 6: Final answer
   x = 18,172.59