Finding the Fourth Proportional to 106,443.69, 146,739.66 and 83,743.26

Step by Step Solution

1. Step 1: Write the proportion equation
   106,443.69 : 146,739.66 = 83,743.26 : x
2. Step 2: Convert to fraction form
   106,443.69/146,739.66 = 83,743.26/x
3. Step 3: Cross multiply
   106,443.69x = 146,739.66 × 83,743.26
4. Step 4: Simplify right side
   106,443.69x = 12,288,457,499.69
5. Step 5: Solve for x
   x = 12,288,457,499.69/106,443.69
6. Step 6: Final answer
   x = 115,445.62