Finding the Fourth Proportional to 16,359.51, 22,575.42 and 9,285.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,359.51 : 22,575.42 = 9,285.78 : x
2. Step 2: Convert to fraction form
   16,359.51/22,575.42 = 9,285.78/x
3. Step 3: Cross multiply
   16,359.51x = 22,575.42 × 9,285.78
4. Step 4: Simplify right side
   16,359.51x = 209,630,383.53
5. Step 5: Solve for x
   x = 209,630,383.53/16,359.51
6. Step 6: Final answer
   x = 12,813.98