Finding the Fourth Proportional to 105,618.84, 158,428.56 and 30,740.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,618.84 : 158,428.56 = 30,740.82 : x
2. Step 2: Convert to fraction form
   105,618.84/158,428.56 = 30,740.82/x
3. Step 3: Cross multiply
   105,618.84x = 158,428.56 × 30,740.82
4. Step 4: Simplify right side
   105,618.84x = 4,870,223,194.07
5. Step 5: Solve for x
   x = 4,870,223,194.07/105,618.84
6. Step 6: Final answer
   x = 46,111.31