Finding the Fourth Proportional to 111,261.82, 166,872.79 and 31,280.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,261.82 : 166,872.79 = 31,280.60 : x
2. Step 2: Convert to fraction form
   111,261.82/166,872.79 = 31,280.60/x
3. Step 3: Cross multiply
   111,261.82x = 166,872.79 × 31,280.60
4. Step 4: Simplify right side
   111,261.82x = 5,219,880,994.87
5. Step 5: Solve for x
   x = 5,219,880,994.87/111,261.82
6. Step 6: Final answer
   x = 46,915.29