Finding the Fourth Proportional to 123,200.50, 170,015.84 and 69,485.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,200.50 : 170,015.84 = 69,485.98 : x
2. Step 2: Convert to fraction form
   123,200.50/170,015.84 = 69,485.98/x
3. Step 3: Cross multiply
   123,200.50x = 170,015.84 × 69,485.98
4. Step 4: Simplify right side
   123,200.50x = 11,813,717,257.92
5. Step 5: Solve for x
   x = 11,813,717,257.92/123,200.50
6. Step 6: Final answer
   x = 95,890.17