Finding the Fourth Proportional to 11,983.05, 17,980.71 and 6,723.99

Step by Step Solution

1. Step 1: Write the proportion equation
   11,983.05 : 17,980.71 = 6,723.99 : x
2. Step 2: Convert to fraction form
   11,983.05/17,980.71 = 6,723.99/x
3. Step 3: Cross multiply
   11,983.05x = 17,980.71 × 6,723.99
4. Step 4: Simplify right side
   11,983.05x = 120,902,114.23
5. Step 5: Solve for x
   x = 120,902,114.23/11,983.05
6. Step 6: Final answer
   x = 10,089.43