Finding the Fourth Proportional to 118,648.23, 163,810.98 and 105,879.48

Step by Step Solution

1. Step 1: Write the proportion equation
   118,648.23 : 163,810.98 = 105,879.48 : x
2. Step 2: Convert to fraction form
   118,648.23/163,810.98 = 105,879.48/x
3. Step 3: Cross multiply
   118,648.23x = 163,810.98 × 105,879.48
4. Step 4: Simplify right side
   118,648.23x = 17,344,221,380.69
5. Step 5: Solve for x
   x = 17,344,221,380.69/118,648.23
6. Step 6: Final answer
   x = 146,181.88