Finding the Fourth Proportional to 69,557.82, 104,103.45 and 57,077.34

Step by Step Solution

1. Step 1: Write the proportion equation
   69,557.82 : 104,103.45 = 57,077.34 : x
2. Step 2: Convert to fraction form
   69,557.82/104,103.45 = 57,077.34/x
3. Step 3: Cross multiply
   69,557.82x = 104,103.45 × 57,077.34
4. Step 4: Simplify right side
   69,557.82x = 5,941,948,010.82
5. Step 5: Solve for x
   x = 5,941,948,010.82/69,557.82
6. Step 6: Final answer
   x = 85,424.59