Finding the Fourth Proportional to 10,556.79, 15,842.18 and 5,629.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,556.79 : 15,842.18 = 5,629.98 : x
2. Step 2: Convert to fraction form
   10,556.79/15,842.18 = 5,629.98/x
3. Step 3: Cross multiply
   10,556.79x = 15,842.18 × 5,629.98
4. Step 4: Simplify right side
   10,556.79x = 89,191,128.41
5. Step 5: Solve for x
   x = 89,191,128.41/10,556.79
6. Step 6: Final answer
   x = 8,448.70