Finding the Fourth Proportional to 10,080.01, 13,908.90 and 5,603.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,080.01 : 13,908.90 = 5,603.80 : x
2. Step 2: Convert to fraction form
   10,080.01/13,908.90 = 5,603.80/x
3. Step 3: Cross multiply
   10,080.01x = 13,908.90 × 5,603.80
4. Step 4: Simplify right side
   10,080.01x = 77,942,693.82
5. Step 5: Solve for x
   x = 77,942,693.82/10,080.01
6. Step 6: Final answer
   x = 7,732.40