Finding the Fourth Proportional to 70,406.15, 105,608.24 and 17,098.49

Step by Step Solution

1. Step 1: Write the proportion equation
   70,406.15 : 105,608.24 = 17,098.49 : x
2. Step 2: Convert to fraction form
   70,406.15/105,608.24 = 17,098.49/x
3. Step 3: Cross multiply
   70,406.15x = 105,608.24 × 17,098.49
4. Step 4: Simplify right side
   70,406.15x = 1,805,741,678.21
5. Step 5: Solve for x
   x = 1,805,741,678.21/70,406.15
6. Step 6: Final answer
   x = 25,647.50