Finding the Fourth Proportional to 16,090.50, 22,200.02 and 10,128.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,090.50 : 22,200.02 = 10,128.10 : x
2. Step 2: Convert to fraction form
   16,090.50/22,200.02 = 10,128.10/x
3. Step 3: Cross multiply
   16,090.50x = 22,200.02 × 10,128.10
4. Step 4: Simplify right side
   16,090.50x = 224,844,022.56
5. Step 5: Solve for x
   x = 224,844,022.56/16,090.50
6. Step 6: Final answer
   x = 13,973.71