Finding the Fourth Proportional to 111,860.27, 154,367.69 and 64,116.41

Step by Step Solution

1. Step 1: Write the proportion equation
   111,860.27 : 154,367.69 = 64,116.41 : x
2. Step 2: Convert to fraction form
   111,860.27/154,367.69 = 64,116.41/x
3. Step 3: Cross multiply
   111,860.27x = 154,367.69 × 64,116.41
4. Step 4: Simplify right side
   111,860.27x = 9,897,501,782.21
5. Step 5: Solve for x
   x = 9,897,501,782.21/111,860.27
6. Step 6: Final answer
   x = 88,480.94