Finding the Fourth Proportional to 9,860.14, 13,606.42 and 5,383

Step by Step Solution

1. Step 1: Write the proportion equation
   9,860.14 : 13,606.42 = 5,383 : x
2. Step 2: Convert to fraction form
   9,860.14/13,606.42 = 5,383/x
3. Step 3: Cross multiply
   9,860.14x = 13,606.42 × 5,383
4. Step 4: Simplify right side
   9,860.14x = 73,243,358.86
5. Step 5: Solve for x
   x = 73,243,358.86/9,860.14
6. Step 6: Final answer
   x = 7,428.23