Finding the Fourth Proportional to 105,561.15, 158,352.12 and 30,681.95

Step by Step Solution

1. Step 1: Write the proportion equation
   105,561.15 : 158,352.12 = 30,681.95 : x
2. Step 2: Convert to fraction form
   105,561.15/158,352.12 = 30,681.95/x
3. Step 3: Cross multiply
   105,561.15x = 158,352.12 × 30,681.95
4. Step 4: Simplify right side
   105,561.15x = 4,858,551,630.29
5. Step 5: Solve for x
   x = 4,858,551,630.29/105,561.15
6. Step 6: Final answer
   x = 46,025.94