Finding the Fourth Proportional to 42,997.61, 64,491.55 and 14,912.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,997.61 : 64,491.55 = 14,912.48 : x
2. Step 2: Convert to fraction form
   42,997.61/64,491.55 = 14,912.48/x
3. Step 3: Cross multiply
   42,997.61x = 64,491.55 × 14,912.48
4. Step 4: Simplify right side
   42,997.61x = 961,728,949.54
5. Step 5: Solve for x
   x = 961,728,949.54/42,997.61
6. Step 6: Final answer
   x = 22,367.03