Finding the Fourth Proportional to 7,109.10, 10,648.26 and 5,157

Step by Step Solution

1. Step 1: Write the proportion equation
   7,109.10 : 10,648.26 = 5,157 : x
2. Step 2: Convert to fraction form
   7,109.10/10,648.26 = 5,157/x
3. Step 3: Cross multiply
   7,109.10x = 10,648.26 × 5,157
4. Step 4: Simplify right side
   7,109.10x = 54,913,076.82
5. Step 5: Solve for x
   x = 54,913,076.82/7,109.10
6. Step 6: Final answer
   x = 7,724.34