Finding the Fourth Proportional to 111,479.82, 153,832 and 66,150

Step by Step Solution

1. Step 1: Write the proportion equation
   111,479.82 : 153,832 = 66,150 : x
2. Step 2: Convert to fraction form
   111,479.82/153,832 = 66,150/x
3. Step 3: Cross multiply
   111,479.82x = 153,832 × 66,150
4. Step 4: Simplify right side
   111,479.82x = 10,175,986,800
5. Step 5: Solve for x
   x = 10,175,986,800/111,479.82
6. Step 6: Final answer
   x = 91,280.98