Finding the Fourth Proportional to 72,663.36, 108,836.80 and 35,144.29

Step by Step Solution

1. Step 1: Write the proportion equation
   72,663.36 : 108,836.80 = 35,144.29 : x
2. Step 2: Convert to fraction form
   72,663.36/108,836.80 = 35,144.29/x
3. Step 3: Cross multiply
   72,663.36x = 108,836.80 × 35,144.29
4. Step 4: Simplify right side
   72,663.36x = 3,824,992,061.87
5. Step 5: Solve for x
   x = 3,824,992,061.87/72,663.36
6. Step 6: Final answer
   x = 52,639.90