Finding the Fourth Proportional to 16,089.18, 22,200.93 and 9,015.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,089.18 : 22,200.93 = 9,015.72 : x
2. Step 2: Convert to fraction form
   16,089.18/22,200.93 = 9,015.72/x
3. Step 3: Cross multiply
   16,089.18x = 22,200.93 × 9,015.72
4. Step 4: Simplify right side
   16,089.18x = 200,157,368.62
5. Step 5: Solve for x
   x = 200,157,368.62/16,089.18
6. Step 6: Final answer
   x = 12,440.50