Finding the Fourth Proportional to 123,559, 170,514.04 and 69,840.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,559 : 170,514.04 = 69,840.80 : x
2. Step 2: Convert to fraction form
   123,559/170,514.04 = 69,840.80/x
3. Step 3: Cross multiply
   123,559x = 170,514.04 × 69,840.80
4. Step 4: Simplify right side
   123,559x = 11,908,836,964.83
5. Step 5: Solve for x
   x = 11,908,836,964.83/123,559
6. Step 6: Final answer
   x = 96,381.78