Finding the Fourth Proportional to 16,859.96, 23,259.54 and 12,375.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,859.96 : 23,259.54 = 12,375.98 : x
2. Step 2: Convert to fraction form
   16,859.96/23,259.54 = 12,375.98/x
3. Step 3: Cross multiply
   16,859.96x = 23,259.54 × 12,375.98
4. Step 4: Simplify right side
   16,859.96x = 287,859,601.85
5. Step 5: Solve for x
   x = 287,859,601.85/16,859.96
6. Step 6: Final answer
   x = 17,073.56