Finding the Fourth Proportional to 118,131.96, 162,673.68 and 105,552.12

Step by Step Solution

1. Step 1: Write the proportion equation
   118,131.96 : 162,673.68 = 105,552.12 : x
2. Step 2: Convert to fraction form
   118,131.96/162,673.68 = 105,552.12/x
3. Step 3: Cross multiply
   118,131.96x = 162,673.68 × 105,552.12
4. Step 4: Simplify right side
   118,131.96x = 17,170,551,792.20
5. Step 5: Solve for x
   x = 17,170,551,792.20/118,131.96
6. Step 6: Final answer
   x = 145,350.60