Finding the Fourth Proportional to 16,982.72, 23,459.78 and 16,152.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,982.72 : 23,459.78 = 16,152.34 : x
2. Step 2: Convert to fraction form
   16,982.72/23,459.78 = 16,152.34/x
3. Step 3: Cross multiply
   16,982.72x = 23,459.78 × 16,152.34
4. Step 4: Simplify right side
   16,982.72x = 378,930,342.89
5. Step 5: Solve for x
   x = 378,930,342.89/16,982.72
6. Step 6: Final answer
   x = 22,312.70