Finding the Fourth Proportional to 69,558.82, 104,104.95 and 57,078.34

Step by Step Solution

1. Step 1: Write the proportion equation
   69,558.82 : 104,104.95 = 57,078.34 : x
2. Step 2: Convert to fraction form
   69,558.82/104,104.95 = 57,078.34/x
3. Step 3: Cross multiply
   69,558.82x = 104,104.95 × 57,078.34
4. Step 4: Simplify right side
   69,558.82x = 5,942,137,731.78
5. Step 5: Solve for x
   x = 5,942,137,731.78/69,558.82
6. Step 6: Final answer
   x = 85,426.09