Finding the Fourth Proportional to 69,934.54, 104,945.56 and 28,381.54

Step by Step Solution

1. Step 1: Write the proportion equation
   69,934.54 : 104,945.56 = 28,381.54 : x
2. Step 2: Convert to fraction form
   69,934.54/104,945.56 = 28,381.54/x
3. Step 3: Cross multiply
   69,934.54x = 104,945.56 × 28,381.54
4. Step 4: Simplify right side
   69,934.54x = 2,978,516,608.96
5. Step 5: Solve for x
   x = 2,978,516,608.96/69,934.54
6. Step 6: Final answer
   x = 42,590.07