Finding the Fourth Proportional to 123,058.69, 169,821.06 and 66,470.06

Step by Step Solution

1. Step 1: Write the proportion equation
   123,058.69 : 169,821.06 = 66,470.06 : x
2. Step 2: Convert to fraction form
   123,058.69/169,821.06 = 66,470.06/x
3. Step 3: Cross multiply
   123,058.69x = 169,821.06 × 66,470.06
4. Step 4: Simplify right side
   123,058.69x = 11,288,016,222.75
5. Step 5: Solve for x
   x = 11,288,016,222.75/123,058.69
6. Step 6: Final answer
   x = 91,728.72