Finding the Fourth Proportional to 10,983.93, 15,164.82 and 7,213.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,983.93 : 15,164.82 = 7,213.77 : x
2. Step 2: Convert to fraction form
   10,983.93/15,164.82 = 7,213.77/x
3. Step 3: Cross multiply
   10,983.93x = 15,164.82 × 7,213.77
4. Step 4: Simplify right side
   10,983.93x = 109,395,523.57
5. Step 5: Solve for x
   x = 109,395,523.57/10,983.93
6. Step 6: Final answer
   x = 9,959.60