Finding the Fourth Proportional to 16,002.34, 22,077.30 and 9,286.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,002.34 : 22,077.30 = 9,286.90 : x
2. Step 2: Convert to fraction form
   16,002.34/22,077.30 = 9,286.90/x
3. Step 3: Cross multiply
   16,002.34x = 22,077.30 × 9,286.90
4. Step 4: Simplify right side
   16,002.34x = 205,029,677.37
5. Step 5: Solve for x
   x = 205,029,677.37/16,002.34
6. Step 6: Final answer
   x = 12,812.48