Finding the Fourth Proportional to 105,376.82, 158,091.15 and 74,272.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,376.82 : 158,091.15 = 74,272.82 : x
2. Step 2: Convert to fraction form
   105,376.82/158,091.15 = 74,272.82/x
3. Step 3: Cross multiply
   105,376.82x = 158,091.15 × 74,272.82
4. Step 4: Simplify right side
   105,376.82x = 11,741,875,527.54
5. Step 5: Solve for x
   x = 11,741,875,527.54/105,376.82
6. Step 6: Final answer
   x = 111,427.50