Finding the Fourth Proportional to 105,852.07, 146,079.62 and 58,109.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105,852.07 : 146,079.62 = 58,109.05 : x
2. Step 2: Convert to fraction form
   105,852.07/146,079.62 = 58,109.05/x
3. Step 3: Cross multiply
   105,852.07x = 146,079.62 × 58,109.05
4. Step 4: Simplify right side
   105,852.07x = 8,488,547,942.56
5. Step 5: Solve for x
   x = 8,488,547,942.56/105,852.07
6. Step 6: Final answer
   x = 80,192.55