Finding the Fourth Proportional to 16,870.88, 23,284.32 and 16,354.64

Step by Step Solution

1. Step 1: Write the proportion equation
   16,870.88 : 23,284.32 = 16,354.64 : x
2. Step 2: Convert to fraction form
   16,870.88/23,284.32 = 16,354.64/x
3. Step 3: Cross multiply
   16,870.88x = 23,284.32 × 16,354.64
4. Step 4: Simplify right side
   16,870.88x = 380,806,671.24
5. Step 5: Solve for x
   x = 380,806,671.24/16,870.88
6. Step 6: Final answer
   x = 22,571.83