Finding the Fourth Proportional to 111,923.02, 154,444.35 and 64,165.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,923.02 : 154,444.35 = 64,165.42 : x
2. Step 2: Convert to fraction form
   111,923.02/154,444.35 = 64,165.42/x
3. Step 3: Cross multiply
   111,923.02x = 154,444.35 × 64,165.42
4. Step 4: Simplify right side
   111,923.02x = 9,909,986,584.38
5. Step 5: Solve for x
   x = 9,909,986,584.38/111,923.02
6. Step 6: Final answer
   x = 88,542.88