Finding the Fourth Proportional to 105,613.20, 158,386.32 and 34,519.74

Step by Step Solution

1. Step 1: Write the proportion equation
   105,613.20 : 158,386.32 = 34,519.74 : x
2. Step 2: Convert to fraction form
   105,613.20/158,386.32 = 34,519.74/x
3. Step 3: Cross multiply
   105,613.20x = 158,386.32 × 34,519.74
4. Step 4: Simplify right side
   105,613.20x = 5,467,454,585.96
5. Step 5: Solve for x
   x = 5,467,454,585.96/105,613.20
6. Step 6: Final answer
   x = 51,768.67