Finding the Fourth Proportional to 10,079.52, 13,909.79 and 5,603.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,079.52 : 13,909.79 = 5,603.69 : x
2. Step 2: Convert to fraction form
   10,079.52/13,909.79 = 5,603.69/x
3. Step 3: Cross multiply
   10,079.52x = 13,909.79 × 5,603.69
4. Step 4: Simplify right side
   10,079.52x = 77,946,151.13
5. Step 5: Solve for x
   x = 77,946,151.13/10,079.52
6. Step 6: Final answer
   x = 7,733.12