Finding the Fourth Proportional to 16,884.57, 23,300.61 and 9,331.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,884.57 : 23,300.61 = 9,331.43 : x
2. Step 2: Convert to fraction form
   16,884.57/23,300.61 = 9,331.43/x
3. Step 3: Cross multiply
   16,884.57x = 23,300.61 × 9,331.43
4. Step 4: Simplify right side
   16,884.57x = 217,427,894.67
5. Step 5: Solve for x
   x = 217,427,894.67/16,884.57
6. Step 6: Final answer
   x = 12,877.31