Finding the Fourth Proportional to 105,878.54, 158,668.50 and 58,514.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,878.54 : 158,668.50 = 58,514.96 : x
2. Step 2: Convert to fraction form
   105,878.54/158,668.50 = 58,514.96/x
3. Step 3: Cross multiply
   105,878.54x = 158,668.50 × 58,514.96
4. Step 4: Simplify right side
   105,878.54x = 9,284,480,930.76
5. Step 5: Solve for x
   x = 9,284,480,930.76/105,878.54
6. Step 6: Final answer
   x = 87,689.92