Finding the Fourth Proportional to 123,219.50, 170,028.59 and 69,505.38

Step by Step Solution

1. Step 1: Write the proportion equation
   123,219.50 : 170,028.59 = 69,505.38 : x
2. Step 2: Convert to fraction form
   123,219.50/170,028.59 = 69,505.38/x
3. Step 3: Cross multiply
   123,219.50x = 170,028.59 × 69,505.38
4. Step 4: Simplify right side
   123,219.50x = 11,817,901,411.29
5. Step 5: Solve for x
   x = 11,817,901,411.29/123,219.50
6. Step 6: Final answer
   x = 95,909.35