Finding the Fourth Proportional to 28,096.97, 42,145.15 and 16,243.20

Step by Step Solution

1. Step 1: Write the proportion equation
   28,096.97 : 42,145.15 = 16,243.20 : x
2. Step 2: Convert to fraction form
   28,096.97/42,145.15 = 16,243.20/x
3. Step 3: Cross multiply
   28,096.97x = 42,145.15 × 16,243.20
4. Step 4: Simplify right side
   28,096.97x = 684,572,100.48
5. Step 5: Solve for x
   x = 684,572,100.48/28,096.97
6. Step 6: Final answer
   x = 24,364.62