Finding the Fourth Proportional to 154,222.98, 212,828.27 and 89,707.69

Step by Step Solution

1. Step 1: Write the proportion equation
   154,222.98 : 212,828.27 = 89,707.69 : x
2. Step 2: Convert to fraction form
   154,222.98/212,828.27 = 89,707.69/x
3. Step 3: Cross multiply
   154,222.98x = 212,828.27 × 89,707.69
4. Step 4: Simplify right side
   154,222.98x = 19,092,332,468.40
5. Step 5: Solve for x
   x = 19,092,332,468.40/154,222.98
6. Step 6: Final answer
   x = 123,796.94