Finding the Fourth Proportional to 111,892.28, 154,415.42 and 60,902.54

Step by Step Solution

1. Step 1: Write the proportion equation
   111,892.28 : 154,415.42 = 60,902.54 : x
2. Step 2: Convert to fraction form
   111,892.28/154,415.42 = 60,902.54/x
3. Step 3: Cross multiply
   111,892.28x = 154,415.42 × 60,902.54
4. Step 4: Simplify right side
   111,892.28x = 9,404,291,293.17
5. Step 5: Solve for x
   x = 9,404,291,293.17/111,892.28
6. Step 6: Final answer
   x = 84,047.72