Finding the Fourth Proportional to 105,487.62, 158,198.37 and 30,612.93

Step by Step Solution

1. Step 1: Write the proportion equation
   105,487.62 : 158,198.37 = 30,612.93 : x
2. Step 2: Convert to fraction form
   105,487.62/158,198.37 = 30,612.93/x
3. Step 3: Cross multiply
   105,487.62x = 158,198.37 × 30,612.93
4. Step 4: Simplify right side
   105,487.62x = 4,842,915,626.92
5. Step 5: Solve for x
   x = 4,842,915,626.92/105,487.62
6. Step 6: Final answer
   x = 45,909.80