Finding the Fourth Proportional to 16,602.74, 22,909.15 and 9,333.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,602.74 : 22,909.15 = 9,333.40 : x
2. Step 2: Convert to fraction form
   16,602.74/22,909.15 = 9,333.40/x
3. Step 3: Cross multiply
   16,602.74x = 22,909.15 × 9,333.40
4. Step 4: Simplify right side
   16,602.74x = 213,820,215.00
5. Step 5: Solve for x
   x = 213,820,215.00/16,602.74
6. Step 6: Final answer
   x = 12,878.61