Finding the Fourth Proportional to 12,178.86, 16,804.62 and 7,397.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,178.86 : 16,804.62 = 7,397.82 : x
2. Step 2: Convert to fraction form
   12,178.86/16,804.62 = 7,397.82/x
3. Step 3: Cross multiply
   12,178.86x = 16,804.62 × 7,397.82
4. Step 4: Simplify right side
   12,178.86x = 124,317,553.93
5. Step 5: Solve for x
   x = 124,317,553.93/12,178.86
6. Step 6: Final answer
   x = 10,207.65