Finding the Fourth Proportional to 42,564.50, 63,850.42 and 10,974.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,564.50 : 63,850.42 = 10,974.28 : x
2. Step 2: Convert to fraction form
   42,564.50/63,850.42 = 10,974.28/x
3. Step 3: Cross multiply
   42,564.50x = 63,850.42 × 10,974.28
4. Step 4: Simplify right side
   42,564.50x = 700,712,179.56
5. Step 5: Solve for x
   x = 700,712,179.56/42,564.50
6. Step 6: Final answer
   x = 16,462.36