Finding the Fourth Proportional to 164,542.50, 227,068.65 and 89,091

Step by Step Solution

1. Step 1: Write the proportion equation
   164,542.50 : 227,068.65 = 89,091 : x
2. Step 2: Convert to fraction form
   164,542.50/227,068.65 = 89,091/x
3. Step 3: Cross multiply
   164,542.50x = 227,068.65 × 89,091
4. Step 4: Simplify right side
   164,542.50x = 20,229,773,097.15
5. Step 5: Solve for x
   x = 20,229,773,097.15/164,542.50
6. Step 6: Final answer
   x = 122,945.58