Finding the Fourth Proportional to 267,443.47, 401,227.31 and 77,908.33

Step by Step Solution

1. Step 1: Write the proportion equation
   267,443.47 : 401,227.31 = 77,908.33 : x
2. Step 2: Convert to fraction form
   267,443.47/401,227.31 = 77,908.33/x
3. Step 3: Cross multiply
   267,443.47x = 401,227.31 × 77,908.33
4. Step 4: Simplify right side
   267,443.47x = 31,258,949,672.49
5. Step 5: Solve for x
   x = 31,258,949,672.49/267,443.47
6. Step 6: Final answer
   x = 116,880.59