Finding the Fourth Proportional to 16,820.32, 23,223.22 and 10,456.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,820.32 : 23,223.22 = 10,456.42 : x
2. Step 2: Convert to fraction form
   16,820.32/23,223.22 = 10,456.42/x
3. Step 3: Cross multiply
   16,820.32x = 23,223.22 × 10,456.42
4. Step 4: Simplify right side
   16,820.32x = 242,831,742.07
5. Step 5: Solve for x
   x = 242,831,742.07/16,820.32
6. Step 6: Final answer
   x = 14,436.81