Finding the Fourth Proportional to 70,083.94, 105,139.76 and 25,711.10

Step by Step Solution

1. Step 1: Write the proportion equation
   70,083.94 : 105,139.76 = 25,711.10 : x
2. Step 2: Convert to fraction form
   70,083.94/105,139.76 = 25,711.10/x
3. Step 3: Cross multiply
   70,083.94x = 105,139.76 × 25,711.10
4. Step 4: Simplify right side
   70,083.94x = 2,703,258,883.34
5. Step 5: Solve for x
   x = 2,703,258,883.34/70,083.94
6. Step 6: Final answer
   x = 38,571.73