Finding the Fourth Proportional to 111,640.61, 154,025.93 and 69,183.65

Step by Step Solution

1. Step 1: Write the proportion equation
   111,640.61 : 154,025.93 = 69,183.65 : x
2. Step 2: Convert to fraction form
   111,640.61/154,025.93 = 69,183.65/x
3. Step 3: Cross multiply
   111,640.61x = 154,025.93 × 69,183.65
4. Step 4: Simplify right side
   111,640.61x = 10,656,076,032.04
5. Step 5: Solve for x
   x = 10,656,076,032.04/111,640.61
6. Step 6: Final answer
   x = 95,449.82