Finding the Fourth Proportional to 7,274.19, 10,916.06 and 3,989.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,274.19 : 10,916.06 = 3,989.59 : x
2. Step 2: Convert to fraction form
   7,274.19/10,916.06 = 3,989.59/x
3. Step 3: Cross multiply
   7,274.19x = 10,916.06 × 3,989.59
4. Step 4: Simplify right side
   7,274.19x = 43,550,579.02
5. Step 5: Solve for x
   x = 43,550,579.02/7,274.19
6. Step 6: Final answer
   x = 5,987.00