Finding the Fourth Proportional to 10,663.36, 15,996.93 and 5,126.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,663.36 : 15,996.93 = 5,126.74 : x
2. Step 2: Convert to fraction form
   10,663.36/15,996.93 = 5,126.74/x
3. Step 3: Cross multiply
   10,663.36x = 15,996.93 × 5,126.74
4. Step 4: Simplify right side
   10,663.36x = 82,012,100.91
5. Step 5: Solve for x
   x = 82,012,100.91/10,663.36
6. Step 6: Final answer
   x = 7,691.02