Finding the Fourth Proportional to 16,426.95, 22,671.54 and 9,354.03

Step by Step Solution

1. Step 1: Write the proportion equation
   16,426.95 : 22,671.54 = 9,354.03 : x
2. Step 2: Convert to fraction form
   16,426.95/22,671.54 = 9,354.03/x
3. Step 3: Cross multiply
   16,426.95x = 22,671.54 × 9,354.03
4. Step 4: Simplify right side
   16,426.95x = 212,070,265.31
5. Step 5: Solve for x
   x = 212,070,265.31/16,426.95
6. Step 6: Final answer
   x = 12,909.90