Finding the Fourth Proportional to 7,112.58, 10,664.55 and 3,647.94

Step by Step Solution

1. Step 1: Write the proportion equation
   7,112.58 : 10,664.55 = 3,647.94 : x
2. Step 2: Convert to fraction form
   7,112.58/10,664.55 = 3,647.94/x
3. Step 3: Cross multiply
   7,112.58x = 10,664.55 × 3,647.94
4. Step 4: Simplify right side
   7,112.58x = 38,903,638.53
5. Step 5: Solve for x
   x = 38,903,638.53/7,112.58
6. Step 6: Final answer
   x = 5,469.69