Finding the Fourth Proportional to 164,638.41, 227,200.25 and 89,186.91

Step by Step Solution

1. Step 1: Write the proportion equation
   164,638.41 : 227,200.25 = 89,186.91 : x
2. Step 2: Convert to fraction form
   164,638.41/227,200.25 = 89,186.91/x
3. Step 3: Cross multiply
   164,638.41x = 227,200.25 × 89,186.91
4. Step 4: Simplify right side
   164,638.41x = 20,263,287,802.79
5. Step 5: Solve for x
   x = 20,263,287,802.79/164,638.41
6. Step 6: Final answer
   x = 123,077.52