Finding the Fourth Proportional to 9,946.79, 13,726.88 and 5,470.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,946.79 : 13,726.88 = 5,470.86 : x
2. Step 2: Convert to fraction form
   9,946.79/13,726.88 = 5,470.86/x
3. Step 3: Cross multiply
   9,946.79x = 13,726.88 × 5,470.86
4. Step 4: Simplify right side
   9,946.79x = 75,097,811.36
5. Step 5: Solve for x
   x = 75,097,811.36/9,946.79
6. Step 6: Final answer
   x = 7,549.96