Finding the Fourth Proportional to 72,145.48, 108,125.82 and 30,535.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,145.48 : 108,125.82 = 30,535.24 : x
2. Step 2: Convert to fraction form
   72,145.48/108,125.82 = 30,535.24/x
3. Step 3: Cross multiply
   72,145.48x = 108,125.82 × 30,535.24
4. Step 4: Simplify right side
   72,145.48x = 3,301,647,863.90
5. Step 5: Solve for x
   x = 3,301,647,863.90/72,145.48
6. Step 6: Final answer
   x = 45,763.75