Finding the Fourth Proportional to 16,300, 22,499.12 and 9,674.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,300 : 22,499.12 = 9,674.72 : x
2. Step 2: Convert to fraction form
   16,300/22,499.12 = 9,674.72/x
3. Step 3: Cross multiply
   16,300x = 22,499.12 × 9,674.72
4. Step 4: Simplify right side
   16,300x = 217,672,686.25
5. Step 5: Solve for x
   x = 217,672,686.25/16,300
6. Step 6: Final answer
   x = 13,354.15