Finding the Fourth Proportional to 70,543.69, 105,814.16 and 17,236.02

Step by Step Solution

1. Step 1: Write the proportion equation
   70,543.69 : 105,814.16 = 17,236.02 : x
2. Step 2: Convert to fraction form
   70,543.69/105,814.16 = 17,236.02/x
3. Step 3: Cross multiply
   70,543.69x = 105,814.16 × 17,236.02
4. Step 4: Simplify right side
   70,543.69x = 1,823,814,978.04
5. Step 5: Solve for x
   x = 1,823,814,978.04/70,543.69
6. Step 6: Final answer
   x = 25,853.69