Finding the Fourth Proportional to 111,965.22, 154,504.98 and 61,664.22

Step by Step Solution

1. Step 1: Write the proportion equation
   111,965.22 : 154,504.98 = 61,664.22 : x
2. Step 2: Convert to fraction form
   111,965.22/154,504.98 = 61,664.22/x
3. Step 3: Cross multiply
   111,965.22x = 154,504.98 × 61,664.22
4. Step 4: Simplify right side
   111,965.22x = 9,527,429,077.82
5. Step 5: Solve for x
   x = 9,527,429,077.82/111,965.22
6. Step 6: Final answer
   x = 85,092.76