Finding the Fourth Proportional to 7,173.81, 9,901.58 and 5,660.46

Step by Step Solution

1. Step 1: Write the proportion equation
   7,173.81 : 9,901.58 = 5,660.46 : x
2. Step 2: Convert to fraction form
   7,173.81/9,901.58 = 5,660.46/x
3. Step 3: Cross multiply
   7,173.81x = 9,901.58 × 5,660.46
4. Step 4: Simplify right side
   7,173.81x = 56,047,469.22
5. Step 5: Solve for x
   x = 56,047,469.22/7,173.81
6. Step 6: Final answer
   x = 7,812.79