Finding the Fourth Proportional to 16,558.75, 22,859.54 and 12,773.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,558.75 : 22,859.54 = 12,773.42 : x
2. Step 2: Convert to fraction form
   16,558.75/22,859.54 = 12,773.42/x
3. Step 3: Cross multiply
   16,558.75x = 22,859.54 × 12,773.42
4. Step 4: Simplify right side
   16,558.75x = 291,994,505.43
5. Step 5: Solve for x
   x = 291,994,505.43/16,558.75
6. Step 6: Final answer
   x = 17,633.85