Finding the Fourth Proportional to 7,338.10, 10,302.50 and 7,338.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,338.10 : 10,302.50 = 7,338.10 : x
2. Step 2: Convert to fraction form
   7,338.10/10,302.50 = 7,338.10/x
3. Step 3: Cross multiply
   7,338.10x = 10,302.50 × 7,338.10
4. Step 4: Simplify right side
   7,338.10x = 75,600,775.25
5. Step 5: Solve for x
   x = 75,600,775.25/7,338.10
6. Step 6: Final answer
   x = 10,302.50