Finding the Fourth Proportional to 9,386.72, 14,096.15 and 8,334.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,386.72 : 14,096.15 = 8,334.90 : x
2. Step 2: Convert to fraction form
   9,386.72/14,096.15 = 8,334.90/x
3. Step 3: Cross multiply
   9,386.72x = 14,096.15 × 8,334.90
4. Step 4: Simplify right side
   9,386.72x = 117,490,000.64
5. Step 5: Solve for x
   x = 117,490,000.64/9,386.72
6. Step 6: Final answer
   x = 12,516.62