Finding the Fourth Proportional to 8,749.44, 12,074.27 and 5,607.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,749.44 : 12,074.27 = 5,607.45 : x
2. Step 2: Convert to fraction form
   8,749.44/12,074.27 = 5,607.45/x
3. Step 3: Cross multiply
   8,749.44x = 12,074.27 × 5,607.45
4. Step 4: Simplify right side
   8,749.44x = 67,705,865.31
5. Step 5: Solve for x
   x = 67,705,865.31/8,749.44
6. Step 6: Final answer
   x = 7,738.31