Finding the Fourth Proportional to 12,178.96, 16,802.07 and 7,397.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,178.96 : 16,802.07 = 7,397.12 : x
2. Step 2: Convert to fraction form
   12,178.96/16,802.07 = 7,397.12/x
3. Step 3: Cross multiply
   12,178.96x = 16,802.07 × 7,397.12
4. Step 4: Simplify right side
   12,178.96x = 124,286,928.04
5. Step 5: Solve for x
   x = 124,286,928.04/12,178.96
6. Step 6: Final answer
   x = 10,205.05