Finding the Fourth Proportional to 7,580.72, 11,364.56 and 3,679.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,580.72 : 11,364.56 = 3,679.76 : x
2. Step 2: Convert to fraction form
   7,580.72/11,364.56 = 3,679.76/x
3. Step 3: Cross multiply
   7,580.72x = 11,364.56 × 3,679.76
4. Step 4: Simplify right side
   7,580.72x = 41,818,853.31
5. Step 5: Solve for x
   x = 41,818,853.31/7,580.72
6. Step 6: Final answer
   x = 5,516.48