Finding the Fourth Proportional to 111,699.69, 154,146.61 and 60,712.54

Step by Step Solution

1. Step 1: Write the proportion equation
   111,699.69 : 154,146.61 = 60,712.54 : x
2. Step 2: Convert to fraction form
   111,699.69/154,146.61 = 60,712.54/x
3. Step 3: Cross multiply
   111,699.69x = 154,146.61 × 60,712.54
4. Step 4: Simplify right side
   111,699.69x = 9,358,632,349.55
5. Step 5: Solve for x
   x = 9,358,632,349.55/111,699.69
6. Step 6: Final answer
   x = 83,783.87