Finding the Fourth Proportional to 123,890.12, 170,959.72 and 68,698.96

Step by Step Solution

1. Step 1: Write the proportion equation
   123,890.12 : 170,959.72 = 68,698.96 : x
2. Step 2: Convert to fraction form
   123,890.12/170,959.72 = 68,698.96/x
3. Step 3: Cross multiply
   123,890.12x = 170,959.72 × 68,698.96
4. Step 4: Simplify right side
   123,890.12x = 11,744,754,965.89
5. Step 5: Solve for x
   x = 11,744,754,965.89/123,890.12
6. Step 6: Final answer
   x = 94,799.77