Finding the Fourth Proportional to 10,951.76, 16,428.52 and 4,374.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,951.76 : 16,428.52 = 4,374.34 : x
2. Step 2: Convert to fraction form
   10,951.76/16,428.52 = 4,374.34/x
3. Step 3: Cross multiply
   10,951.76x = 16,428.52 × 4,374.34
4. Step 4: Simplify right side
   10,951.76x = 71,863,839.10
5. Step 5: Solve for x
   x = 71,863,839.10/10,951.76
6. Step 6: Final answer
   x = 6,561.85