Finding the Fourth Proportional to 267,531.49, 401,253.49 and 80,499.25

Step by Step Solution

1. Step 1: Write the proportion equation
   267,531.49 : 401,253.49 = 80,499.25 : x
2. Step 2: Convert to fraction form
   267,531.49/401,253.49 = 80,499.25/x
3. Step 3: Cross multiply
   267,531.49x = 401,253.49 × 80,499.25
4. Step 4: Simplify right side
   267,531.49x = 32,300,605,004.88
5. Step 5: Solve for x
   x = 32,300,605,004.88/267,531.49
6. Step 6: Final answer
   x = 120,735.71