Finding the Fourth Proportional to 9,180.71, 12,676.52 and 7,052.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,180.71 : 12,676.52 = 7,052.88 : x
2. Step 2: Convert to fraction form
   9,180.71/12,676.52 = 7,052.88/x
3. Step 3: Cross multiply
   9,180.71x = 12,676.52 × 7,052.88
4. Step 4: Simplify right side
   9,180.71x = 89,405,965.56
5. Step 5: Solve for x
   x = 89,405,965.56/9,180.71
6. Step 6: Final answer
   x = 9,738.46