Finding the Fourth Proportional to 70,423.68, 105,634.49 and 17,116.05

Step by Step Solution

1. Step 1: Write the proportion equation
   70,423.68 : 105,634.49 = 17,116.05 : x
2. Step 2: Convert to fraction form
   70,423.68/105,634.49 = 17,116.05/x
3. Step 3: Cross multiply
   70,423.68x = 105,634.49 × 17,116.05
4. Step 4: Simplify right side
   70,423.68x = 1,808,045,212.56
5. Step 5: Solve for x
   x = 1,808,045,212.56/70,423.68
6. Step 6: Final answer
   x = 25,673.82