Finding the Fourth Proportional to 9,806.88, 13,533.49 and 5,615.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,806.88 : 13,533.49 = 5,615.94 : x
2. Step 2: Convert to fraction form
   9,806.88/13,533.49 = 5,615.94/x
3. Step 3: Cross multiply
   9,806.88x = 13,533.49 × 5,615.94
4. Step 4: Simplify right side
   9,806.88x = 76,003,267.83
5. Step 5: Solve for x
   x = 76,003,267.83/9,806.88
6. Step 6: Final answer
   x = 7,749.99