Finding the Fourth Proportional to 150,918.50, 208,268.34 and 83,850.50

Step by Step Solution

1. Step 1: Write the proportion equation
   150,918.50 : 208,268.34 = 83,850.50 : x
2. Step 2: Convert to fraction form
   150,918.50/208,268.34 = 83,850.50/x
3. Step 3: Cross multiply
   150,918.50x = 208,268.34 × 83,850.50
4. Step 4: Simplify right side
   150,918.50x = 17,463,404,443.17
5. Step 5: Solve for x
   x = 17,463,404,443.17/150,918.50
6. Step 6: Final answer
   x = 115,714.14