Finding the Fourth Proportional to 11,456.39, 17,181.89 and 6,460.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,456.39 : 17,181.89 = 6,460.91 : x
2. Step 2: Convert to fraction form
   11,456.39/17,181.89 = 6,460.91/x
3. Step 3: Cross multiply
   11,456.39x = 17,181.89 × 6,460.91
4. Step 4: Simplify right side
   11,456.39x = 111,010,526.71
5. Step 5: Solve for x
   x = 111,010,526.71/11,456.39
6. Step 6: Final answer
   x = 9,689.84