Finding the Fourth Proportional to 164,089.50, 226,443.63 and 88,638

Step by Step Solution

1. Step 1: Write the proportion equation
   164,089.50 : 226,443.63 = 88,638 : x
2. Step 2: Convert to fraction form
   164,089.50/226,443.63 = 88,638/x
3. Step 3: Cross multiply
   164,089.50x = 226,443.63 × 88,638
4. Step 4: Simplify right side
   164,089.50x = 20,071,510,475.94
5. Step 5: Solve for x
   x = 20,071,510,475.94/164,089.50
6. Step 6: Final answer
   x = 122,320.50