Finding the Fourth Proportional to 9,857.84, 13,604.04 and 5,608.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,857.84 : 13,604.04 = 5,608.76 : x
2. Step 2: Convert to fraction form
   9,857.84/13,604.04 = 5,608.76/x
3. Step 3: Cross multiply
   9,857.84x = 13,604.04 × 5,608.76
4. Step 4: Simplify right side
   9,857.84x = 76,301,795.39
5. Step 5: Solve for x
   x = 76,301,795.39/9,857.84
6. Step 6: Final answer
   x = 7,740.21