Finding the Fourth Proportional to 9,992.58, 14,912.88 and 8,885.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,992.58 : 14,912.88 = 8,885.46 : x
2. Step 2: Convert to fraction form
   9,992.58/14,912.88 = 8,885.46/x
3. Step 3: Cross multiply
   9,992.58x = 14,912.88 × 8,885.46
4. Step 4: Simplify right side
   9,992.58x = 132,507,798.72
5. Step 5: Solve for x
   x = 132,507,798.72/9,992.58
6. Step 6: Final answer
   x = 13,260.62