Finding the Fourth Proportional to 164,499.20, 227,006.79 and 89,047.70

Step by Step Solution

1. Step 1: Write the proportion equation
   164,499.20 : 227,006.79 = 89,047.70 : x
2. Step 2: Convert to fraction form
   164,499.20/227,006.79 = 89,047.70/x
3. Step 3: Cross multiply
   164,499.20x = 227,006.79 × 89,047.70
4. Step 4: Simplify right side
   164,499.20x = 20,214,432,533.88
5. Step 5: Solve for x
   x = 20,214,432,533.88/164,499.20
6. Step 6: Final answer
   x = 122,884.69