Finding the Fourth Proportional to 28,323.57, 42,462.12 and 19,414.28

Step by Step Solution

1. Step 1: Write the proportion equation
   28,323.57 : 42,462.12 = 19,414.28 : x
2. Step 2: Convert to fraction form
   28,323.57/42,462.12 = 19,414.28/x
3. Step 3: Cross multiply
   28,323.57x = 42,462.12 × 19,414.28
4. Step 4: Simplify right side
   28,323.57x = 824,371,666.03
5. Step 5: Solve for x
   x = 824,371,666.03/28,323.57
6. Step 6: Final answer
   x = 29,105.50