Finding the Fourth Proportional to 9,899.09, 13,660.83 and 5,707.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,899.09 : 13,660.83 = 5,707.34 : x
2. Step 2: Convert to fraction form
   9,899.09/13,660.83 = 5,707.34/x
3. Step 3: Cross multiply
   9,899.09x = 13,660.83 × 5,707.34
4. Step 4: Simplify right side
   9,899.09x = 77,966,933.19
5. Step 5: Solve for x
   x = 77,966,933.19/9,899.09
6. Step 6: Final answer
   x = 7,876.18