Finding the Fourth Proportional to 165,519, 228,416.76 and 90,067.56

Step by Step Solution

1. Step 1: Write the proportion equation
   165,519 : 228,416.76 = 90,067.56 : x
2. Step 2: Convert to fraction form
   165,519/228,416.76 = 90,067.56/x
3. Step 3: Cross multiply
   165,519x = 228,416.76 × 90,067.56
4. Step 4: Simplify right side
   165,519x = 20,572,940,236.31
5. Step 5: Solve for x
   x = 20,572,940,236.31/165,519
6. Step 6: Final answer
   x = 124,293.53