Finding the Fourth Proportional to 23,815.80, 32,865.31 and 13,205.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,815.80 : 32,865.31 = 13,205.34 : x
2. Step 2: Convert to fraction form
   23,815.80/32,865.31 = 13,205.34/x
3. Step 3: Cross multiply
   23,815.80x = 32,865.31 × 13,205.34
4. Step 4: Simplify right side
   23,815.80x = 433,997,592.76
5. Step 5: Solve for x
   x = 433,997,592.76/23,815.80
6. Step 6: Final answer
   x = 18,223.10