Finding the Fourth Proportional to 105,404.26, 158,068.59 and 30,508.91

Step by Step Solution

1. Step 1: Write the proportion equation
   105,404.26 : 158,068.59 = 30,508.91 : x
2. Step 2: Convert to fraction form
   105,404.26/158,068.59 = 30,508.91/x
3. Step 3: Cross multiply
   105,404.26x = 158,068.59 × 30,508.91
4. Step 4: Simplify right side
   105,404.26x = 4,822,499,674.42
5. Step 5: Solve for x
   x = 4,822,499,674.42/105,404.26
6. Step 6: Final answer
   x = 45,752.42