Finding the Fourth Proportional to 6,902.03, 9,507.03 and 5,407.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,902.03 : 9,507.03 = 5,407.31 : x
2. Step 2: Convert to fraction form
   6,902.03/9,507.03 = 5,407.31/x
3. Step 3: Cross multiply
   6,902.03x = 9,507.03 × 5,407.31
4. Step 4: Simplify right side
   6,902.03x = 51,407,458.39
5. Step 5: Solve for x
   x = 51,407,458.39/6,902.03
6. Step 6: Final answer
   x = 7,448.17