Finding the Fourth Proportional to 69,559.82, 104,106.45 and 57,079.34

Step by Step Solution

1. Step 1: Write the proportion equation
   69,559.82 : 104,106.45 = 57,079.34 : x
2. Step 2: Convert to fraction form
   69,559.82/104,106.45 = 57,079.34/x
3. Step 3: Cross multiply
   69,559.82x = 104,106.45 × 57,079.34
4. Step 4: Simplify right side
   69,559.82x = 5,942,327,455.74
5. Step 5: Solve for x
   x = 5,942,327,455.74/69,559.82
6. Step 6: Final answer
   x = 85,427.59