Finding the Fourth Proportional to 9,615.10, 13,268.83 and 5,423.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,615.10 : 13,268.83 = 5,423.35 : x
2. Step 2: Convert to fraction form
   9,615.10/13,268.83 = 5,423.35/x
3. Step 3: Cross multiply
   9,615.10x = 13,268.83 × 5,423.35
4. Step 4: Simplify right side
   9,615.10x = 71,961,462.45
5. Step 5: Solve for x
   x = 71,961,462.45/9,615.10
6. Step 6: Final answer
   x = 7,484.22