Finding the Fourth Proportional to 150,932.72, 208,241.68 and 90,481.31

Step by Step Solution

1. Step 1: Write the proportion equation
   150,932.72 : 208,241.68 = 90,481.31 : x
2. Step 2: Convert to fraction form
   150,932.72/208,241.68 = 90,481.31/x
3. Step 3: Cross multiply
   150,932.72x = 208,241.68 × 90,481.31
4. Step 4: Simplify right side
   150,932.72x = 18,841,980,003.00
5. Step 5: Solve for x
   x = 18,841,980,003.00/150,932.72
6. Step 6: Final answer
   x = 124,836.95