Finding the Fourth Proportional to 123,196.05, 170,010.41 and 66,607.29

Step by Step Solution

1. Step 1: Write the proportion equation
   123,196.05 : 170,010.41 = 66,607.29 : x
2. Step 2: Convert to fraction form
   123,196.05/170,010.41 = 66,607.29/x
3. Step 3: Cross multiply
   123,196.05x = 170,010.41 × 66,607.29
4. Step 4: Simplify right side
   123,196.05x = 11,323,932,348.85
5. Step 5: Solve for x
   x = 11,323,932,348.85/123,196.05
6. Step 6: Final answer
   x = 91,917.98