Finding the Fourth Proportional to 9,699.40, 13,383.56 and 5,719.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,699.40 : 13,383.56 = 5,719.96 : x
2. Step 2: Convert to fraction form
   9,699.40/13,383.56 = 5,719.96/x
3. Step 3: Cross multiply
   9,699.40x = 13,383.56 × 5,719.96
4. Step 4: Simplify right side
   9,699.40x = 76,553,427.86
5. Step 5: Solve for x
   x = 76,553,427.86/9,699.40
6. Step 6: Final answer
   x = 7,892.59