Finding the Fourth Proportional to 42,717.72, 64,032 and 14,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,717.72 : 64,032 = 14,629.50 : x
2. Step 2: Convert to fraction form
   42,717.72/64,032 = 14,629.50/x
3. Step 3: Cross multiply
   42,717.72x = 64,032 × 14,629.50
4. Step 4: Simplify right side
   42,717.72x = 936,756,144
5. Step 5: Solve for x
   x = 936,756,144/42,717.72
6. Step 6: Final answer
   x = 21,928.98