Finding the Fourth Proportional to 9,989.06, 13,784.94 and 5,512.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,989.06 : 13,784.94 = 5,512.82 : x
2. Step 2: Convert to fraction form
   9,989.06/13,784.94 = 5,512.82/x
3. Step 3: Cross multiply
   9,989.06x = 13,784.94 × 5,512.82
4. Step 4: Simplify right side
   9,989.06x = 75,993,824.01
5. Step 5: Solve for x
   x = 75,993,824.01/9,989.06
6. Step 6: Final answer
   x = 7,607.71