Finding the Fourth Proportional to 10,318.77, 14,239.89 and 5,603.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,318.77 : 14,239.89 = 5,603.07 : x
2. Step 2: Convert to fraction form
   10,318.77/14,239.89 = 5,603.07/x
3. Step 3: Cross multiply
   10,318.77x = 14,239.89 × 5,603.07
4. Step 4: Simplify right side
   10,318.77x = 79,787,100.46
5. Step 5: Solve for x
   x = 79,787,100.46/10,318.77
6. Step 6: Final answer
   x = 7,732.23