Finding the Fourth Proportional to 17,072.54, 25,613.36 and 5,385.75

Step by Step Solution

1. Step 1: Write the proportion equation
   17,072.54 : 25,613.36 = 5,385.75 : x
2. Step 2: Convert to fraction form
   17,072.54/25,613.36 = 5,385.75/x
3. Step 3: Cross multiply
   17,072.54x = 25,613.36 × 5,385.75
4. Step 4: Simplify right side
   17,072.54x = 137,947,126.69
5. Step 5: Solve for x
   x = 137,947,126.69/17,072.54
6. Step 6: Final answer
   x = 8,080.06