Finding the Fourth Proportional to 7,368.82, 10,167.55 and 5,129.87

Step by Step Solution

1. Step 1: Write the proportion equation
   7,368.82 : 10,167.55 = 5,129.87 : x
2. Step 2: Convert to fraction form
   7,368.82/10,167.55 = 5,129.87/x
3. Step 3: Cross multiply
   7,368.82x = 10,167.55 × 5,129.87
4. Step 4: Simplify right side
   7,368.82x = 52,158,209.72
5. Step 5: Solve for x
   x = 52,158,209.72/7,368.82
6. Step 6: Final answer
   x = 7,078.23