Finding the Fourth Proportional to 105,597.72, 158,411.99 and 30,708.15

Step by Step Solution

1. Step 1: Write the proportion equation
   105,597.72 : 158,411.99 = 30,708.15 : x
2. Step 2: Convert to fraction form
   105,597.72/158,411.99 = 30,708.15/x
3. Step 3: Cross multiply
   105,597.72x = 158,411.99 × 30,708.15
4. Step 4: Simplify right side
   105,597.72x = 4,864,538,997.18
5. Step 5: Solve for x
   x = 4,864,538,997.18/105,597.72
6. Step 6: Final answer
   x = 46,066.71