Finding the Fourth Proportional to 69,789.31, 104,724.96 and 25,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,789.31 : 104,724.96 = 25,418.72 : x
2. Step 2: Convert to fraction form
   69,789.31/104,724.96 = 25,418.72/x
3. Step 3: Cross multiply
   69,789.31x = 104,724.96 × 25,418.72
4. Step 4: Simplify right side
   69,789.31x = 2,661,974,435.25
5. Step 5: Solve for x
   x = 2,661,974,435.25/69,789.31
6. Step 6: Final answer
   x = 38,143.01