Finding the Fourth Proportional to 108,380.10, 162,482.66 and 99,632.10

Step by Step Solution

1. Step 1: Write the proportion equation
   108,380.10 : 162,482.66 = 99,632.10 : x
2. Step 2: Convert to fraction form
   108,380.10/162,482.66 = 99,632.10/x
3. Step 3: Cross multiply
   108,380.10x = 162,482.66 × 99,632.10
4. Step 4: Simplify right side
   108,380.10x = 16,188,488,629.39
5. Step 5: Solve for x
   x = 16,188,488,629.39/108,380.10
6. Step 6: Final answer
   x = 149,367.72