Finding the Fourth Proportional to 279,410.89, 419,112.22 and 69,048.82

Step by Step Solution

1. Step 1: Write the proportion equation
   279,410.89 : 419,112.22 = 69,048.82 : x
2. Step 2: Convert to fraction form
   279,410.89/419,112.22 = 69,048.82/x
3. Step 3: Cross multiply
   279,410.89x = 419,112.22 × 69,048.82
4. Step 4: Simplify right side
   279,410.89x = 28,939,204,238.58
5. Step 5: Solve for x
   x = 28,939,204,238.58/279,410.89
6. Step 6: Final answer
   x = 103,572.21