Finding the Fourth Proportional to 69,932.54, 104,942.56 and 28,379.54

Step by Step Solution

1. Step 1: Write the proportion equation
   69,932.54 : 104,942.56 = 28,379.54 : x
2. Step 2: Convert to fraction form
   69,932.54/104,942.56 = 28,379.54/x
3. Step 3: Cross multiply
   69,932.54x = 104,942.56 × 28,379.54
4. Step 4: Simplify right side
   69,932.54x = 2,978,221,579.22
5. Step 5: Solve for x
   x = 2,978,221,579.22/69,932.54
6. Step 6: Final answer
   x = 42,587.06