Finding the Fourth Proportional to 123,123.87, 169,910.94 and 69,408.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,123.87 : 169,910.94 = 69,408.88 : x
2. Step 2: Convert to fraction form
   123,123.87/169,910.94 = 69,408.88/x
3. Step 3: Cross multiply
   123,123.87x = 169,910.94 × 69,408.88
4. Step 4: Simplify right side
   123,123.87x = 11,793,328,045.15
5. Step 5: Solve for x
   x = 11,793,328,045.15/123,123.87
6. Step 6: Final answer
   x = 95,784.25