Finding the Fourth Proportional to 9,806.70, 14,684.13 and 5,179.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,806.70 : 14,684.13 = 5,179.98 : x
2. Step 2: Convert to fraction form
   9,806.70/14,684.13 = 5,179.98/x
3. Step 3: Cross multiply
   9,806.70x = 14,684.13 × 5,179.98
4. Step 4: Simplify right side
   9,806.70x = 76,063,499.72
5. Step 5: Solve for x
   x = 76,063,499.72/9,806.70
6. Step 6: Final answer
   x = 7,756.28