Finding the Fourth Proportional to 17,458.72, 26,189.70 and 7,071.28

Step by Step Solution

1. Step 1: Write the proportion equation
   17,458.72 : 26,189.70 = 7,071.28 : x
2. Step 2: Convert to fraction form
   17,458.72/26,189.70 = 7,071.28/x
3. Step 3: Cross multiply
   17,458.72x = 26,189.70 × 7,071.28
4. Step 4: Simplify right side
   17,458.72x = 185,194,701.82
5. Step 5: Solve for x
   x = 185,194,701.82/17,458.72
6. Step 6: Final answer
   x = 10,607.58