Finding the Fourth Proportional to 14,693.34, 20,276.82 and 7,978.96

Step by Step Solution

1. Step 1: Write the proportion equation
   14,693.34 : 20,276.82 = 7,978.96 : x
2. Step 2: Convert to fraction form
   14,693.34/20,276.82 = 7,978.96/x
3. Step 3: Cross multiply
   14,693.34x = 20,276.82 × 7,978.96
4. Step 4: Simplify right side
   14,693.34x = 161,787,794.43
5. Step 5: Solve for x
   x = 161,787,794.43/14,693.34
6. Step 6: Final answer
   x = 11,010.96