Finding the Fourth Proportional to 111,723.90, 154,212.22 and 64,009.02

Step by Step Solution

1. Step 1: Write the proportion equation
   111,723.90 : 154,212.22 = 64,009.02 : x
2. Step 2: Convert to fraction form
   111,723.90/154,212.22 = 64,009.02/x
3. Step 3: Cross multiply
   111,723.90x = 154,212.22 × 64,009.02
4. Step 4: Simplify right side
   111,723.90x = 9,870,973,074.22
5. Step 5: Solve for x
   x = 9,870,973,074.22/111,723.90
6. Step 6: Final answer
   x = 88,351.49