Finding the Fourth Proportional to 9,340.17, 12,889.47 and 5,148.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,340.17 : 12,889.47 = 5,148.42 : x
2. Step 2: Convert to fraction form
   9,340.17/12,889.47 = 5,148.42/x
3. Step 3: Cross multiply
   9,340.17x = 12,889.47 × 5,148.42
4. Step 4: Simplify right side
   9,340.17x = 66,360,405.14
5. Step 5: Solve for x
   x = 66,360,405.14/9,340.17
6. Step 6: Final answer
   x = 7,104.84