Finding the Fourth Proportional to 9,765.32, 14,689.56 and 8,851.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,765.32 : 14,689.56 = 8,851.91 : x
2. Step 2: Convert to fraction form
   9,765.32/14,689.56 = 8,851.91/x
3. Step 3: Cross multiply
   9,765.32x = 14,689.56 × 8,851.91
4. Step 4: Simplify right side
   9,765.32x = 130,030,589.61
5. Step 5: Solve for x
   x = 130,030,589.61/9,765.32
6. Step 6: Final answer
   x = 13,315.56