Finding the Fourth Proportional to 9,803.38, 14,705.71 and 7,178.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,803.38 : 14,705.71 = 7,178.74 : x
2. Step 2: Convert to fraction form
   9,803.38/14,705.71 = 7,178.74/x
3. Step 3: Cross multiply
   9,803.38x = 14,705.71 × 7,178.74
4. Step 4: Simplify right side
   9,803.38x = 105,568,468.61
5. Step 5: Solve for x
   x = 105,568,468.61/9,803.38
6. Step 6: Final answer
   x = 10,768.58