Finding the Fourth Proportional to 111,393.55, 166,938.72 and 61,398.73

Step by Step Solution

1. Step 1: Write the proportion equation
   111,393.55 : 166,938.72 = 61,398.73 : x
2. Step 2: Convert to fraction form
   111,393.55/166,938.72 = 61,398.73/x
3. Step 3: Cross multiply
   111,393.55x = 166,938.72 × 61,398.73
4. Step 4: Simplify right side
   111,393.55x = 10,249,825,395.83
5. Step 5: Solve for x
   x = 10,249,825,395.83/111,393.55
6. Step 6: Final answer
   x = 92,014.53