Finding the Fourth Proportional to 123,677.42, 170,674.89 and 69,961.31

Step by Step Solution

1. Step 1: Write the proportion equation
   123,677.42 : 170,674.89 = 69,961.31 : x
2. Step 2: Convert to fraction form
   123,677.42/170,674.89 = 69,961.31/x
3. Step 3: Cross multiply
   123,677.42x = 170,674.89 × 69,961.31
4. Step 4: Simplify right side
   123,677.42x = 11,940,638,035.13
5. Step 5: Solve for x
   x = 11,940,638,035.13/123,677.42
6. Step 6: Final answer
   x = 96,546.63