Finding the Fourth Proportional to 164,683.02, 227,263.35 and 89,231.50

Step by Step Solution

1. Step 1: Write the proportion equation
   164,683.02 : 227,263.35 = 89,231.50 : x
2. Step 2: Convert to fraction form
   164,683.02/227,263.35 = 89,231.50/x
3. Step 3: Cross multiply
   164,683.02x = 227,263.35 × 89,231.50
4. Step 4: Simplify right side
   164,683.02x = 20,279,049,615.53
5. Step 5: Solve for x
   x = 20,279,049,615.53/164,683.02
6. Step 6: Final answer
   x = 123,139.89