Finding the Fourth Proportional to 108,357.24, 162,856.68 and 105,412.08

Step by Step Solution

1. Step 1: Write the proportion equation
   108,357.24 : 162,856.68 = 105,412.08 : x
2. Step 2: Convert to fraction form
   108,357.24/162,856.68 = 105,412.08/x
3. Step 3: Cross multiply
   108,357.24x = 162,856.68 × 105,412.08
4. Step 4: Simplify right side
   108,357.24x = 17,167,061,380.69
5. Step 5: Solve for x
   x = 17,167,061,380.69/108,357.24
6. Step 6: Final answer
   x = 158,430.22