Finding the Fourth Proportional to 10,080.05, 13,909.81 and 5,603.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,080.05 : 13,909.81 = 5,603.68 : x
2. Step 2: Convert to fraction form
   10,080.05/13,909.81 = 5,603.68/x
3. Step 3: Cross multiply
   10,080.05x = 13,909.81 × 5,603.68
4. Step 4: Simplify right side
   10,080.05x = 77,946,161.63
5. Step 5: Solve for x
   x = 77,946,161.63/10,080.05
6. Step 6: Final answer
   x = 7,732.72