Finding the Fourth Proportional to 9,919.37, 13,689.62 and 5,444.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,919.37 : 13,689.62 = 5,444.00 : x
2. Step 2: Convert to fraction form
   9,919.37/13,689.62 = 5,444.00/x
3. Step 3: Cross multiply
   9,919.37x = 13,689.62 × 5,444.00
4. Step 4: Simplify right side
   9,919.37x = 74,526,195.61
5. Step 5: Solve for x
   x = 74,526,195.61/9,919.37
6. Step 6: Final answer
   x = 7,513.20