Finding the Fourth Proportional to 123,162.06, 169,963.55 and 66,573.43

Step by Step Solution

1. Step 1: Write the proportion equation
   123,162.06 : 169,963.55 = 66,573.43 : x
2. Step 2: Convert to fraction form
   123,162.06/169,963.55 = 66,573.43/x
3. Step 3: Cross multiply
   123,162.06x = 169,963.55 × 66,573.43
4. Step 4: Simplify right side
   123,162.06x = 11,315,056,498.48
5. Step 5: Solve for x
   x = 11,315,056,498.48/123,162.06
6. Step 6: Final answer
   x = 91,871.28