Finding the Fourth Proportional to 16,402.84, 22,635.92 and 9,329.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,402.84 : 22,635.92 = 9,329.72 : x
2. Step 2: Convert to fraction form
   16,402.84/22,635.92 = 9,329.72/x
3. Step 3: Cross multiply
   16,402.84x = 22,635.92 × 9,329.72
4. Step 4: Simplify right side
   16,402.84x = 211,186,795.54
5. Step 5: Solve for x
   x = 211,186,795.54/16,402.84
6. Step 6: Final answer
   x = 12,875.01