Finding the Fourth Proportional to 111,098.78, 166,574.01 and 61,202.78

Step by Step Solution

1. Step 1: Write the proportion equation
   111,098.78 : 166,574.01 = 61,202.78 : x
2. Step 2: Convert to fraction form
   111,098.78/166,574.01 = 61,202.78/x
3. Step 3: Cross multiply
   111,098.78x = 166,574.01 × 61,202.78
4. Step 4: Simplify right side
   111,098.78x = 10,194,792,487.75
5. Step 5: Solve for x
   x = 10,194,792,487.75/111,098.78
6. Step 6: Final answer
   x = 91,763.32