Finding the Fourth Proportional to 165,784.56, 228,784.41 and 90,333.06

Step by Step Solution

1. Step 1: Write the proportion equation
   165,784.56 : 228,784.41 = 90,333.06 : x
2. Step 2: Convert to fraction form
   165,784.56/228,784.41 = 90,333.06/x
3. Step 3: Cross multiply
   165,784.56x = 228,784.41 × 90,333.06
4. Step 4: Simplify right side
   165,784.56x = 20,666,795,835.59
5. Step 5: Solve for x
   x = 20,666,795,835.59/165,784.56
6. Step 6: Final answer
   x = 124,660.56