Finding the Fourth Proportional to 69,123.62, 103,519.35 and 39,451.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,123.62 : 103,519.35 = 39,451.50 : x
2. Step 2: Convert to fraction form
   69,123.62/103,519.35 = 39,451.50/x
3. Step 3: Cross multiply
   69,123.62x = 103,519.35 × 39,451.50
4. Step 4: Simplify right side
   69,123.62x = 4,083,993,636.53
5. Step 5: Solve for x
   x = 4,083,993,636.53/69,123.62
6. Step 6: Final answer
   x = 59,082.47