Finding the Fourth Proportional to 42,752.28, 64,132.52 and 11,162.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,752.28 : 64,132.52 = 11,162.89 : x
2. Step 2: Convert to fraction form
   42,752.28/64,132.52 = 11,162.89/x
3. Step 3: Cross multiply
   42,752.28x = 64,132.52 × 11,162.89
4. Step 4: Simplify right side
   42,752.28x = 715,904,133.76
5. Step 5: Solve for x
   x = 715,904,133.76/42,752.28
6. Step 6: Final answer
   x = 16,745.40