Finding the Fourth Proportional to 111,945.78, 154,477.33 and 63,548.69

Step by Step Solution

1. Step 1: Write the proportion equation
   111,945.78 : 154,477.33 = 63,548.69 : x
2. Step 2: Convert to fraction form
   111,945.78/154,477.33 = 63,548.69/x
3. Step 3: Cross multiply
   111,945.78x = 154,477.33 × 63,548.69
4. Step 4: Simplify right side
   111,945.78x = 9,816,831,024.94
5. Step 5: Solve for x
   x = 9,816,831,024.94/111,945.78
6. Step 6: Final answer
   x = 87,692.73