Finding the Fourth Proportional to 13,057.96, 18,023.46 and 7,751.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,057.96 : 18,023.46 = 7,751.08 : x
2. Step 2: Convert to fraction form
   13,057.96/18,023.46 = 7,751.08/x
3. Step 3: Cross multiply
   13,057.96x = 18,023.46 × 7,751.08
4. Step 4: Simplify right side
   13,057.96x = 139,701,280.34
5. Step 5: Solve for x
   x = 139,701,280.34/13,057.96
6. Step 6: Final answer
   x = 10,698.55