Finding the Fourth Proportional to 42,028.35, 63,035.24 and 13,947.27

Step by Step Solution

1. Step 1: Write the proportion equation
   42,028.35 : 63,035.24 = 13,947.27 : x
2. Step 2: Convert to fraction form
   42,028.35/63,035.24 = 13,947.27/x
3. Step 3: Cross multiply
   42,028.35x = 63,035.24 × 13,947.27
4. Step 4: Simplify right side
   42,028.35x = 879,169,442.06
5. Step 5: Solve for x
   x = 879,169,442.06/42,028.35
6. Step 6: Final answer
   x = 20,918.49