Finding the Fourth Proportional to 111,707.55, 154,192.28 and 71,529.53

Step by Step Solution

1. Step 1: Write the proportion equation
   111,707.55 : 154,192.28 = 71,529.53 : x
2. Step 2: Convert to fraction form
   111,707.55/154,192.28 = 71,529.53/x
3. Step 3: Cross multiply
   111,707.55x = 154,192.28 × 71,529.53
4. Step 4: Simplify right side
   111,707.55x = 11,029,300,189.42
5. Step 5: Solve for x
   x = 11,029,300,189.42/111,707.55
6. Step 6: Final answer
   x = 98,733.70