Finding the Fourth Proportional to 16,388.42, 22,609.58 and 10,089.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,388.42 : 22,609.58 = 10,089.86 : x
2. Step 2: Convert to fraction form
   16,388.42/22,609.58 = 10,089.86/x
3. Step 3: Cross multiply
   16,388.42x = 22,609.58 × 10,089.86
4. Step 4: Simplify right side
   16,388.42x = 228,127,333.36
5. Step 5: Solve for x
   x = 228,127,333.36/16,388.42
6. Step 6: Final answer
   x = 13,920.04