Finding the Fourth Proportional to 123,321.57, 170,171.50 and 69,596.21

Step by Step Solution

1. Step 1: Write the proportion equation
   123,321.57 : 170,171.50 = 69,596.21 : x
2. Step 2: Convert to fraction form
   123,321.57/170,171.50 = 69,596.21/x
3. Step 3: Cross multiply
   123,321.57x = 170,171.50 × 69,596.21
4. Step 4: Simplify right side
   123,321.57x = 11,843,290,461.47
5. Step 5: Solve for x
   x = 11,843,290,461.47/123,321.57
6. Step 6: Final answer
   x = 96,035.84