Finding the Fourth Proportional to 111,709.55, 154,158.88 and 60,722.28

Step by Step Solution

1. Step 1: Write the proportion equation
   111,709.55 : 154,158.88 = 60,722.28 : x
2. Step 2: Convert to fraction form
   111,709.55/154,158.88 = 60,722.28/x
3. Step 3: Cross multiply
   111,709.55x = 154,158.88 × 60,722.28
4. Step 4: Simplify right side
   111,709.55x = 9,360,878,675.85
5. Step 5: Solve for x
   x = 9,360,878,675.85/111,709.55
6. Step 6: Final answer
   x = 83,796.58