Finding the Fourth Proportional to 112,162.37, 154,800.86 and 71,921.57

Step by Step Solution

1. Step 1: Write the proportion equation
   112,162.37 : 154,800.86 = 71,921.57 : x
2. Step 2: Convert to fraction form
   112,162.37/154,800.86 = 71,921.57/x
3. Step 3: Cross multiply
   112,162.37x = 154,800.86 × 71,921.57
4. Step 4: Simplify right side
   112,162.37x = 11,133,519,754.94
5. Step 5: Solve for x
   x = 11,133,519,754.94/112,162.37
6. Step 6: Final answer
   x = 99,262.53