Finding the Fourth Proportional to 7,148.88, 10,708.56 and 5,302.08

Step by Step Solution

1. Step 1: Write the proportion equation
   7,148.88 : 10,708.56 = 5,302.08 : x
2. Step 2: Convert to fraction form
   7,148.88/10,708.56 = 5,302.08/x
3. Step 3: Cross multiply
   7,148.88x = 10,708.56 × 5,302.08
4. Step 4: Simplify right side
   7,148.88x = 56,777,641.80
5. Step 5: Solve for x
   x = 56,777,641.80/7,148.88
6. Step 6: Final answer
   x = 7,942.17