Finding the Fourth Proportional to 8,749.76, 12,075.84 and 5,606.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,749.76 : 12,075.84 = 5,606.72 : x
2. Step 2: Convert to fraction form
   8,749.76/12,075.84 = 5,606.72/x
3. Step 3: Cross multiply
   8,749.76x = 12,075.84 × 5,606.72
4. Step 4: Simplify right side
   8,749.76x = 67,705,853.64
5. Step 5: Solve for x
   x = 67,705,853.64/8,749.76
6. Step 6: Final answer
   x = 7,738.02