Finding the Fourth Proportional to 11,417.30, 17,117.66 and 7,710.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,417.30 : 17,117.66 = 7,710.34 : x
2. Step 2: Convert to fraction form
   11,417.30/17,117.66 = 7,710.34/x
3. Step 3: Cross multiply
   11,417.30x = 17,117.66 × 7,710.34
4. Step 4: Simplify right side
   11,417.30x = 131,982,978.60
5. Step 5: Solve for x
   x = 131,982,978.60/11,417.30
6. Step 6: Final answer
   x = 11,559.91