Finding the Fourth Proportional to 164,520.16, 227,037.90 and 89,068.72

Step by Step Solution

1. Step 1: Write the proportion equation
   164,520.16 : 227,037.90 = 89,068.72 : x
2. Step 2: Convert to fraction form
   164,520.16/227,037.90 = 89,068.72/x
3. Step 3: Cross multiply
   164,520.16x = 227,037.90 × 89,068.72
4. Step 4: Simplify right side
   164,520.16x = 20,221,975,144.49
5. Step 5: Solve for x
   x = 20,221,975,144.49/164,520.16
6. Step 6: Final answer
   x = 122,914.88