Finding the Fourth Proportional to 9,920.09, 13,690.12 and 5,444.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,920.09 : 13,690.12 = 5,444.00 : x
2. Step 2: Convert to fraction form
   9,920.09/13,690.12 = 5,444.00/x
3. Step 3: Cross multiply
   9,920.09x = 13,690.12 × 5,444.00
4. Step 4: Simplify right side
   9,920.09x = 74,529,072.25
5. Step 5: Solve for x
   x = 74,529,072.25/9,920.09
6. Step 6: Final answer
   x = 7,512.94