Finding the Fourth Proportional to 279,408.89, 419,109.23 and 69,046.83

Step by Step Solution

1. Step 1: Write the proportion equation
   279,408.89 : 419,109.23 = 69,046.83 : x
2. Step 2: Convert to fraction form
   279,408.89/419,109.23 = 69,046.83/x
3. Step 3: Cross multiply
   279,408.89x = 419,109.23 × 69,046.83
4. Step 4: Simplify right side
   279,408.89x = 28,938,161,659.69
5. Step 5: Solve for x
   x = 28,938,161,659.69/279,408.89
6. Step 6: Final answer
   x = 103,569.22