Finding the Fourth Proportional to 16,885.98, 23,300.64 and 9,331.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,885.98 : 23,300.64 = 9,331.86 : x
2. Step 2: Convert to fraction form
   16,885.98/23,300.64 = 9,331.86/x
3. Step 3: Cross multiply
   16,885.98x = 23,300.64 × 9,331.86
4. Step 4: Simplify right side
   16,885.98x = 217,438,310.39
5. Step 5: Solve for x
   x = 217,438,310.39/16,885.98
6. Step 6: Final answer
   x = 12,876.85