Finding the Fourth Proportional to 7,648.98, 10,556.78 and 4,293.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,648.98 : 10,556.78 = 4,293.15 : x
2. Step 2: Convert to fraction form
   7,648.98/10,556.78 = 4,293.15/x
3. Step 3: Cross multiply
   7,648.98x = 10,556.78 × 4,293.15
4. Step 4: Simplify right side
   7,648.98x = 45,321,840.06
5. Step 5: Solve for x
   x = 45,321,840.06/7,648.98
6. Step 6: Final answer
   x = 5,925.21