Finding the Fourth Proportional to 16,402.56, 22,646.40 and 10,124.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,402.56 : 22,646.40 = 10,124.16 : x
2. Step 2: Convert to fraction form
   16,402.56/22,646.40 = 10,124.16/x
3. Step 3: Cross multiply
   16,402.56x = 22,646.40 × 10,124.16
4. Step 4: Simplify right side
   16,402.56x = 229,275,777.02
5. Step 5: Solve for x
   x = 229,275,777.02/16,402.56
6. Step 6: Final answer
   x = 13,978.05