Finding the Fourth Proportional to 191,259.35, 263,789.62 and 123,287.39

Step by Step Solution

1. Step 1: Write the proportion equation
   191,259.35 : 263,789.62 = 123,287.39 : x
2. Step 2: Convert to fraction form
   191,259.35/263,789.62 = 123,287.39/x
3. Step 3: Cross multiply
   191,259.35x = 263,789.62 × 123,287.39
4. Step 4: Simplify right side
   191,259.35x = 32,521,932,131.73
5. Step 5: Solve for x
   x = 32,521,932,131.73/191,259.35
6. Step 6: Final answer
   x = 170,041.01