Finding the Fourth Proportional to 70,323.15, 105,456.31 and 25,940.05

Step by Step Solution

1. Step 1: Write the proportion equation
   70,323.15 : 105,456.31 = 25,940.05 : x
2. Step 2: Convert to fraction form
   70,323.15/105,456.31 = 25,940.05/x
3. Step 3: Cross multiply
   70,323.15x = 105,456.31 × 25,940.05
4. Step 4: Simplify right side
   70,323.15x = 2,735,541,954.22
5. Step 5: Solve for x
   x = 2,735,541,954.22/70,323.15
6. Step 6: Final answer
   x = 38,899.59