Finding the Fourth Proportional to 9,530.34, 13,151.70 and 5,339.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,530.34 : 13,151.70 = 5,339.40 : x
2. Step 2: Convert to fraction form
   9,530.34/13,151.70 = 5,339.40/x
3. Step 3: Cross multiply
   9,530.34x = 13,151.70 × 5,339.40
4. Step 4: Simplify right side
   9,530.34x = 70,222,186.98
5. Step 5: Solve for x
   x = 70,222,186.98/9,530.34
6. Step 6: Final answer
   x = 7,368.28