Finding the Fourth Proportional to 9,534.84, 13,158.32 and 5,286.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,534.84 : 13,158.32 = 5,286.12 : x
2. Step 2: Convert to fraction form
   9,534.84/13,158.32 = 5,286.12/x
3. Step 3: Cross multiply
   9,534.84x = 13,158.32 × 5,286.12
4. Step 4: Simplify right side
   9,534.84x = 69,556,458.52
5. Step 5: Solve for x
   x = 69,556,458.52/9,534.84
6. Step 6: Final answer
   x = 7,294.98