Finding the Fourth Proportional to 70,074.72, 105,049.56 and 25,691.10

Step by Step Solution

1. Step 1: Write the proportion equation
   70,074.72 : 105,049.56 = 25,691.10 : x
2. Step 2: Convert to fraction form
   70,074.72/105,049.56 = 25,691.10/x
3. Step 3: Cross multiply
   70,074.72x = 105,049.56 × 25,691.10
4. Step 4: Simplify right side
   70,074.72x = 2,698,838,750.92
5. Step 5: Solve for x
   x = 2,698,838,750.92/70,074.72
6. Step 6: Final answer
   x = 38,513.73