Finding the Fourth Proportional to 10,651.20, 15,976.82 and 10,635.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,651.20 : 15,976.82 = 10,635.83 : x
2. Step 2: Convert to fraction form
   10,651.20/15,976.82 = 10,635.83/x
3. Step 3: Cross multiply
   10,651.20x = 15,976.82 × 10,635.83
4. Step 4: Simplify right side
   10,651.20x = 169,926,608.40
5. Step 5: Solve for x
   x = 169,926,608.40/10,651.20
6. Step 6: Final answer
   x = 15,953.75