Finding the Fourth Proportional to 9,784.70, 13,503.15 and 5,809.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,784.70 : 13,503.15 = 5,809.10 : x
2. Step 2: Convert to fraction form
   9,784.70/13,503.15 = 5,809.10/x
3. Step 3: Cross multiply
   9,784.70x = 13,503.15 × 5,809.10
4. Step 4: Simplify right side
   9,784.70x = 78,441,148.67
5. Step 5: Solve for x
   x = 78,441,148.67/9,784.70
6. Step 6: Final answer
   x = 8,016.71