Finding the Fourth Proportional to 10,079.67, 13,909.83 and 5,603.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,079.67 : 13,909.83 = 5,603.40 : x
2. Step 2: Convert to fraction form
   10,079.67/13,909.83 = 5,603.40/x
3. Step 3: Cross multiply
   10,079.67x = 13,909.83 × 5,603.40
4. Step 4: Simplify right side
   10,079.67x = 77,942,341.42
5. Step 5: Solve for x
   x = 77,942,341.42/10,079.67
6. Step 6: Final answer
   x = 7,732.63