Finding the Fourth Proportional to 9,705.74, 13,393.85 and 5,513.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,705.74 : 13,393.85 = 5,513.99 : x
2. Step 2: Convert to fraction form
   9,705.74/13,393.85 = 5,513.99/x
3. Step 3: Cross multiply
   9,705.74x = 13,393.85 × 5,513.99
4. Step 4: Simplify right side
   9,705.74x = 73,853,541.18
5. Step 5: Solve for x
   x = 73,853,541.18/9,705.74
6. Step 6: Final answer
   x = 7,609.26