Finding the Fourth Proportional to 165,320.48, 228,144.72 and 89,869.04

Step by Step Solution

1. Step 1: Write the proportion equation
   165,320.48 : 228,144.72 = 89,869.04 : x
2. Step 2: Convert to fraction form
   165,320.48/228,144.72 = 89,869.04/x
3. Step 3: Cross multiply
   165,320.48x = 228,144.72 × 89,869.04
4. Step 4: Simplify right side
   165,320.48x = 20,503,146,967.47
5. Step 5: Solve for x
   x = 20,503,146,967.47/165,320.48
6. Step 6: Final answer
   x = 124,020.61