Finding the Fourth Proportional to 42,732.92, 64,106.67 and 13,150.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,732.92 : 64,106.67 = 13,150.10 : x
2. Step 2: Convert to fraction form
   42,732.92/64,106.67 = 13,150.10/x
3. Step 3: Cross multiply
   42,732.92x = 64,106.67 × 13,150.10
4. Step 4: Simplify right side
   42,732.92x = 843,008,859.19
5. Step 5: Solve for x
   x = 843,008,859.19/42,732.92
6. Step 6: Final answer
   x = 19,727.39