Finding the Fourth Proportional to 42,648.72, 63,968.16 and 11,481.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,648.72 : 63,968.16 = 11,481.52 : x
2. Step 2: Convert to fraction form
   42,648.72/63,968.16 = 11,481.52/x
3. Step 3: Cross multiply
   42,648.72x = 63,968.16 × 11,481.52
4. Step 4: Simplify right side
   42,648.72x = 734,451,708.40
5. Step 5: Solve for x
   x = 734,451,708.40/42,648.72
6. Step 6: Final answer
   x = 17,220.96