Finding the Fourth Proportional to 9,719.36, 13,411.46 and 5,470.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,719.36 : 13,411.46 = 5,470.31 : x
2. Step 2: Convert to fraction form
   9,719.36/13,411.46 = 5,470.31/x
3. Step 3: Cross multiply
   9,719.36x = 13,411.46 × 5,470.31
4. Step 4: Simplify right side
   9,719.36x = 73,364,749.34
5. Step 5: Solve for x
   x = 73,364,749.34/9,719.36
6. Step 6: Final answer
   x = 7,548.31