Finding the Fourth Proportional to 105,441.52, 158,162.38 and 43,112.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,441.52 : 158,162.38 = 43,112.02 : x
2. Step 2: Convert to fraction form
   105,441.52/158,162.38 = 43,112.02/x
3. Step 3: Cross multiply
   105,441.52x = 158,162.38 × 43,112.02
4. Step 4: Simplify right side
   105,441.52x = 6,818,699,689.81
5. Step 5: Solve for x
   x = 6,818,699,689.81/105,441.52
6. Step 6: Final answer
   x = 64,668.07