Finding the Fourth Proportional to 11,707.82, 17,555.42 and 5,126.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,707.82 : 17,555.42 = 5,126.34 : x
2. Step 2: Convert to fraction form
   11,707.82/17,555.42 = 5,126.34/x
3. Step 3: Cross multiply
   11,707.82x = 17,555.42 × 5,126.34
4. Step 4: Simplify right side
   11,707.82x = 89,995,051.76
5. Step 5: Solve for x
   x = 89,995,051.76/11,707.82
6. Step 6: Final answer
   x = 7,686.75