Finding the Fourth Proportional to 105,648.86, 158,499.28 and 30,769.71

Step by Step Solution

1. Step 1: Write the proportion equation
   105,648.86 : 158,499.28 = 30,769.71 : x
2. Step 2: Convert to fraction form
   105,648.86/158,499.28 = 30,769.71/x
3. Step 3: Cross multiply
   105,648.86x = 158,499.28 × 30,769.71
4. Step 4: Simplify right side
   105,648.86x = 4,876,976,324.90
5. Step 5: Solve for x
   x = 4,876,976,324.90/105,648.86
6. Step 6: Final answer
   x = 46,162.13