Finding the Fourth Proportional to 165,697.02, 228,662.34 and 90,245.52

Step by Step Solution

1. Step 1: Write the proportion equation
   165,697.02 : 228,662.34 = 90,245.52 : x
2. Step 2: Convert to fraction form
   165,697.02/228,662.34 = 90,245.52/x
3. Step 3: Cross multiply
   165,697.02x = 228,662.34 × 90,245.52
4. Step 4: Simplify right side
   165,697.02x = 20,635,751,777.72
5. Step 5: Solve for x
   x = 20,635,751,777.72/165,697.02
6. Step 6: Final answer
   x = 124,539.06