Finding the Fourth Proportional to 123,801.36, 170,986.56 and 83,445.48

Step by Step Solution

1. Step 1: Write the proportion equation
   123,801.36 : 170,986.56 = 83,445.48 : x
2. Step 2: Convert to fraction form
   123,801.36/170,986.56 = 83,445.48/x
3. Step 3: Cross multiply
   123,801.36x = 170,986.56 × 83,445.48
4. Step 4: Simplify right side
   123,801.36x = 14,268,055,572.75
5. Step 5: Solve for x
   x = 14,268,055,572.75/123,801.36
6. Step 6: Final answer
   x = 115,249.59