Finding the Fourth Proportional to 9,946.28, 13,726.13 and 5,470.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,946.28 : 13,726.13 = 5,470.31 : x
2. Step 2: Convert to fraction form
   9,946.28/13,726.13 = 5,470.31/x
3. Step 3: Cross multiply
   9,946.28x = 13,726.13 × 5,470.31
4. Step 4: Simplify right side
   9,946.28x = 75,086,090.22
5. Step 5: Solve for x
   x = 75,086,090.22/9,946.28
6. Step 6: Final answer
   x = 7,549.17