Finding the Fourth Proportional to 165,726.24, 228,704.72 and 90,274.72

Step by Step Solution

1. Step 1: Write the proportion equation
   165,726.24 : 228,704.72 = 90,274.72 : x
2. Step 2: Convert to fraction form
   165,726.24/228,704.72 = 90,274.72/x
3. Step 3: Cross multiply
   165,726.24x = 228,704.72 × 90,274.72
4. Step 4: Simplify right side
   165,726.24x = 20,646,254,560.68
5. Step 5: Solve for x
   x = 20,646,254,560.68/165,726.24
6. Step 6: Final answer
   x = 124,580.48