Finding the Fourth Proportional to 165,579, 228,499.02 and 90,128.04

Step by Step Solution

1. Step 1: Write the proportion equation
   165,579 : 228,499.02 = 90,128.04 : x
2. Step 2: Convert to fraction form
   165,579/228,499.02 = 90,128.04/x
3. Step 3: Cross multiply
   165,579x = 228,499.02 × 90,128.04
4. Step 4: Simplify right side
   165,579x = 20,594,168,814.52
5. Step 5: Solve for x
   x = 20,594,168,814.52/165,579
6. Step 6: Final answer
   x = 124,376.70