Finding the Fourth Proportional to 7,056.94, 9,738.72 and 3,913.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,056.94 : 9,738.72 = 3,913.12 : x
2. Step 2: Convert to fraction form
   7,056.94/9,738.72 = 3,913.12/x
3. Step 3: Cross multiply
   7,056.94x = 9,738.72 × 3,913.12
4. Step 4: Simplify right side
   7,056.94x = 38,108,780.01
5. Step 5: Solve for x
   x = 38,108,780.01/7,056.94
6. Step 6: Final answer
   x = 5,400.18