Finding the Fourth Proportional to 111,604.99, 154,016.02 and 60,618.21

Step by Step Solution

1. Step 1: Write the proportion equation
   111,604.99 : 154,016.02 = 60,618.21 : x
2. Step 2: Convert to fraction form
   111,604.99/154,016.02 = 60,618.21/x
3. Step 3: Cross multiply
   111,604.99x = 154,016.02 × 60,618.21
4. Step 4: Simplify right side
   111,604.99x = 9,336,175,443.72
5. Step 5: Solve for x
   x = 9,336,175,443.72/111,604.99
6. Step 6: Final answer
   x = 83,653.75