Finding the Fourth Proportional to 111,097.28, 166,571.76 and 61,201.28

Step by Step Solution

1. Step 1: Write the proportion equation
   111,097.28 : 166,571.76 = 61,201.28 : x
2. Step 2: Convert to fraction form
   111,097.28/166,571.76 = 61,201.28/x
3. Step 3: Cross multiply
   111,097.28x = 166,571.76 × 61,201.28
4. Step 4: Simplify right side
   111,097.28x = 10,194,404,923.85
5. Step 5: Solve for x
   x = 10,194,404,923.85/111,097.28
6. Step 6: Final answer
   x = 91,761.07