Finding the Fourth Proportional to 7,807.59, 10,778.93 and 5,162.67

Step by Step Solution

1. Step 1: Write the proportion equation
   7,807.59 : 10,778.93 = 5,162.67 : x
2. Step 2: Convert to fraction form
   7,807.59/10,778.93 = 5,162.67/x
3. Step 3: Cross multiply
   7,807.59x = 10,778.93 × 5,162.67
4. Step 4: Simplify right side
   7,807.59x = 55,648,058.54
5. Step 5: Solve for x
   x = 55,648,058.54/7,807.59
6. Step 6: Final answer
   x = 7,127.43