Finding the Fourth Proportional to 9,857.05, 13,603.06 and 5,381.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,857.05 : 13,603.06 = 5,381.04 : x
2. Step 2: Convert to fraction form
   9,857.05/13,603.06 = 5,381.04/x
3. Step 3: Cross multiply
   9,857.05x = 13,603.06 × 5,381.04
4. Step 4: Simplify right side
   9,857.05x = 73,198,637.45
5. Step 5: Solve for x
   x = 73,198,637.45/9,857.05
6. Step 6: Final answer
   x = 7,426.02