Finding the Fourth Proportional to 7,340.10, 10,256.70 and 7,340.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,340.10 : 10,256.70 = 7,340.10 : x
2. Step 2: Convert to fraction form
   7,340.10/10,256.70 = 7,340.10/x
3. Step 3: Cross multiply
   7,340.10x = 10,256.70 × 7,340.10
4. Step 4: Simplify right side
   7,340.10x = 75,285,203.67
5. Step 5: Solve for x
   x = 75,285,203.67/7,340.10
6. Step 6: Final answer
   x = 10,256.70