Finding the Fourth Proportional to 9,311.13, 13,963.73 and 3,069.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,311.13 : 13,963.73 = 3,069.98 : x
2. Step 2: Convert to fraction form
   9,311.13/13,963.73 = 3,069.98/x
3. Step 3: Cross multiply
   9,311.13x = 13,963.73 × 3,069.98
4. Step 4: Simplify right side
   9,311.13x = 42,868,371.83
5. Step 5: Solve for x
   x = 42,868,371.83/9,311.13
6. Step 6: Final answer
   x = 4,603.99