Finding the Fourth Proportional to 279,409.89, 419,110.73 and 69,047.82

Step by Step Solution

1. Step 1: Write the proportion equation
   279,409.89 : 419,110.73 = 69,047.82 : x
2. Step 2: Convert to fraction form
   279,409.89/419,110.73 = 69,047.82/x
3. Step 3: Cross multiply
   279,409.89x = 419,110.73 × 69,047.82
4. Step 4: Simplify right side
   279,409.89x = 28,938,681,899.87
5. Step 5: Solve for x
   x = 28,938,681,899.87/279,409.89
6. Step 6: Final answer
   x = 103,570.71