Finding the Fourth Proportional to 16,856.96, 23,262.77 and 9,303.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,856.96 : 23,262.77 = 9,303.57 : x
2. Step 2: Convert to fraction form
   16,856.96/23,262.77 = 9,303.57/x
3. Step 3: Cross multiply
   16,856.96x = 23,262.77 × 9,303.57
4. Step 4: Simplify right side
   16,856.96x = 216,426,832.35
5. Step 5: Solve for x
   x = 216,426,832.35/16,856.96
6. Step 6: Final answer
   x = 12,839.02