Finding the Fourth Proportional to 123,789.63, 170,831.76 and 67,201

Step by Step Solution

1. Step 1: Write the proportion equation
   123,789.63 : 170,831.76 = 67,201 : x
2. Step 2: Convert to fraction form
   123,789.63/170,831.76 = 67,201/x
3. Step 3: Cross multiply
   123,789.63x = 170,831.76 × 67,201
4. Step 4: Simplify right side
   123,789.63x = 11,480,065,103.76
5. Step 5: Solve for x
   x = 11,480,065,103.76/123,789.63
6. Step 6: Final answer
   x = 92,738.50