Finding the Fourth Proportional to 105,709.62, 158,253.39 and 70,562.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,709.62 : 158,253.39 = 70,562.10 : x
2. Step 2: Convert to fraction form
   105,709.62/158,253.39 = 70,562.10/x
3. Step 3: Cross multiply
   105,709.62x = 158,253.39 × 70,562.10
4. Step 4: Simplify right side
   105,709.62x = 11,166,691,530.52
5. Step 5: Solve for x
   x = 11,166,691,530.52/105,709.62
6. Step 6: Final answer
   x = 105,635.53