Finding the Fourth Proportional to 10,709.83, 14,771.40 and 7,118.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,709.83 : 14,771.40 = 7,118.35 : x
2. Step 2: Convert to fraction form
   10,709.83/14,771.40 = 7,118.35/x
3. Step 3: Cross multiply
   10,709.83x = 14,771.40 × 7,118.35
4. Step 4: Simplify right side
   10,709.83x = 105,147,995.19
5. Step 5: Solve for x
   x = 105,147,995.19/10,709.83
6. Step 6: Final answer
   x = 9,817.90