Finding the Fourth Proportional to 16,086.69, 22,199.88 and 9,372.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,086.69 : 22,199.88 = 9,372.15 : x
2. Step 2: Convert to fraction form
   16,086.69/22,199.88 = 9,372.15/x
3. Step 3: Cross multiply
   16,086.69x = 22,199.88 × 9,372.15
4. Step 4: Simplify right side
   16,086.69x = 208,060,605.34
5. Step 5: Solve for x
   x = 208,060,605.34/16,086.69
6. Step 6: Final answer
   x = 12,933.71