Finding the Fourth Proportional to 105,380.52, 158,069.94 and 43,007.28

Step by Step Solution

1. Step 1: Write the proportion equation
   105,380.52 : 158,069.94 = 43,007.28 : x
2. Step 2: Convert to fraction form
   105,380.52/158,069.94 = 43,007.28/x
3. Step 3: Cross multiply
   105,380.52x = 158,069.94 × 43,007.28
4. Step 4: Simplify right side
   105,380.52x = 6,798,158,169.16
5. Step 5: Solve for x
   x = 6,798,158,169.16/105,380.52
6. Step 6: Final answer
   x = 64,510.58