Finding the Fourth Proportional to 108,042.30, 161,856.90 and 58,105.80

Step by Step Solution

1. Step 1: Write the proportion equation
   108,042.30 : 161,856.90 = 58,105.80 : x
2. Step 2: Convert to fraction form
   108,042.30/161,856.90 = 58,105.80/x
3. Step 3: Cross multiply
   108,042.30x = 161,856.90 × 58,105.80
4. Step 4: Simplify right side
   108,042.30x = 9,404,824,660.02
5. Step 5: Solve for x
   x = 9,404,824,660.02/108,042.30
6. Step 6: Final answer
   x = 87,047.62