Finding the Fourth Proportional to 165,559, 228,471.42 and 90,108.04

Step by Step Solution

1. Step 1: Write the proportion equation
   165,559 : 228,471.42 = 90,108.04 : x
2. Step 2: Convert to fraction form
   165,559/228,471.42 = 90,108.04/x
3. Step 3: Cross multiply
   165,559x = 228,471.42 × 90,108.04
4. Step 4: Simplify right side
   165,559x = 20,587,111,852.22
5. Step 5: Solve for x
   x = 20,587,111,852.22/165,559
6. Step 6: Final answer
   x = 124,349.10