Finding the Fourth Proportional to 12,883.32, 17,775.78 and 8,165.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,883.32 : 17,775.78 = 8,165.88 : x
2. Step 2: Convert to fraction form
   12,883.32/17,775.78 = 8,165.88/x
3. Step 3: Cross multiply
   12,883.32x = 17,775.78 × 8,165.88
4. Step 4: Simplify right side
   12,883.32x = 145,154,886.39
5. Step 5: Solve for x
   x = 145,154,886.39/12,883.32
6. Step 6: Final answer
   x = 11,266.89