Finding the Fourth Proportional to 70,144.72, 105,258.99 and 25,775.96

Step by Step Solution

1. Step 1: Write the proportion equation
   70,144.72 : 105,258.99 = 25,775.96 : x
2. Step 2: Convert to fraction form
   70,144.72/105,258.99 = 25,775.96/x
3. Step 3: Cross multiply
   70,144.72x = 105,258.99 × 25,775.96
4. Step 4: Simplify right side
   70,144.72x = 2,713,151,086.25
5. Step 5: Solve for x
   x = 2,713,151,086.25/70,144.72
6. Step 6: Final answer
   x = 38,679.34