Finding the Fourth Proportional to 10,446.98, 15,663.15 and 5,175.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,446.98 : 15,663.15 = 5,175.56 : x
2. Step 2: Convert to fraction form
   10,446.98/15,663.15 = 5,175.56/x
3. Step 3: Cross multiply
   10,446.98x = 15,663.15 × 5,175.56
4. Step 4: Simplify right side
   10,446.98x = 81,065,494.30
5. Step 5: Solve for x
   x = 81,065,494.30/10,446.98
6. Step 6: Final answer
   x = 7,759.71