Finding the Fourth Proportional to 12,102.16, 16,698 and 7,384.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,102.16 : 16,698 = 7,384.72 : x
2. Step 2: Convert to fraction form
   12,102.16/16,698 = 7,384.72/x
3. Step 3: Cross multiply
   12,102.16x = 16,698 × 7,384.72
4. Step 4: Simplify right side
   12,102.16x = 123,310,054.56
5. Step 5: Solve for x
   x = 123,310,054.56/12,102.16
6. Step 6: Final answer
   x = 10,189.09