Finding the Fourth Proportional to 10,488.32, 15,727.86 and 5,556.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,488.32 : 15,727.86 = 5,556.81 : x
2. Step 2: Convert to fraction form
   10,488.32/15,727.86 = 5,556.81/x
3. Step 3: Cross multiply
   10,488.32x = 15,727.86 × 5,556.81
4. Step 4: Simplify right side
   10,488.32x = 87,396,729.73
5. Step 5: Solve for x
   x = 87,396,729.73/10,488.32
6. Step 6: Final answer
   x = 8,332.77