Finding the Fourth Proportional to 105,462.79, 158,194.18 and 35,391.31

Step by Step Solution

1. Step 1: Write the proportion equation
   105,462.79 : 158,194.18 = 35,391.31 : x
2. Step 2: Convert to fraction form
   105,462.79/158,194.18 = 35,391.31/x
3. Step 3: Cross multiply
   105,462.79x = 158,194.18 × 35,391.31
4. Step 4: Simplify right side
   105,462.79x = 5,598,699,264.58
5. Step 5: Solve for x
   x = 5,598,699,264.58/105,462.79
6. Step 6: Final answer
   x = 53,086.96