Finding the Fourth Proportional to 111,760.90, 154,231.56 and 64,014.20

Step by Step Solution

1. Step 1: Write the proportion equation
   111,760.90 : 154,231.56 = 64,014.20 : x
2. Step 2: Convert to fraction form
   111,760.90/154,231.56 = 64,014.20/x
3. Step 3: Cross multiply
   111,760.90x = 154,231.56 × 64,014.20
4. Step 4: Simplify right side
   111,760.90x = 9,873,009,928.15
5. Step 5: Solve for x
   x = 9,873,009,928.15/111,760.90
6. Step 6: Final answer
   x = 88,340.47