Finding the Fourth Proportional to 105,855.66, 146,081.88 and 58,111.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,855.66 : 146,081.88 = 58,111.02 : x
2. Step 2: Convert to fraction form
   105,855.66/146,081.88 = 58,111.02/x
3. Step 3: Cross multiply
   105,855.66x = 146,081.88 × 58,111.02
4. Step 4: Simplify right side
   105,855.66x = 8,488,967,050.32
5. Step 5: Solve for x
   x = 8,488,967,050.32/105,855.66
6. Step 6: Final answer
   x = 80,193.79