Finding the Fourth Proportional to 72,617.40, 108,968.72 and 30,494.23

Step by Step Solution

1. Step 1: Write the proportion equation
   72,617.40 : 108,968.72 = 30,494.23 : x
2. Step 2: Convert to fraction form
   72,617.40/108,968.72 = 30,494.23/x
3. Step 3: Cross multiply
   72,617.40x = 108,968.72 × 30,494.23
4. Step 4: Simplify right side
   72,617.40x = 3,322,917,210.49
5. Step 5: Solve for x
   x = 3,322,917,210.49/72,617.40
6. Step 6: Final answer
   x = 45,759.24