Finding the Fourth Proportional to 9,946.31, 13,726.28 and 5,470.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,946.31 : 13,726.28 = 5,470.45 : x
2. Step 2: Convert to fraction form
   9,946.31/13,726.28 = 5,470.45/x
3. Step 3: Cross multiply
   9,946.31x = 13,726.28 × 5,470.45
4. Step 4: Simplify right side
   9,946.31x = 75,088,928.43
5. Step 5: Solve for x
   x = 75,088,928.43/9,946.31
6. Step 6: Final answer
   x = 7,549.43