Finding the Fourth Proportional to 9,859.94, 13,606.70 and 5,383.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,859.94 : 13,606.70 = 5,383.71 : x
2. Step 2: Convert to fraction form
   9,859.94/13,606.70 = 5,383.71/x
3. Step 3: Cross multiply
   9,859.94x = 13,606.70 × 5,383.71
4. Step 4: Simplify right side
   9,859.94x = 73,254,458.82
5. Step 5: Solve for x
   x = 73,254,458.82/9,859.94
6. Step 6: Final answer
   x = 7,429.51