Finding the Fourth Proportional to 5,173.32, 7,139.32 and 3,185.00

Step by Step Solution

1. Step 1: Write the proportion equation
   5,173.32 : 7,139.32 = 3,185.00 : x
2. Step 2: Convert to fraction form
   5,173.32/7,139.32 = 3,185.00/x
3. Step 3: Cross multiply
   5,173.32x = 7,139.32 × 3,185.00
4. Step 4: Simplify right side
   5,173.32x = 22,738,736.12
5. Step 5: Solve for x
   x = 22,738,736.12/5,173.32
6. Step 6: Final answer
   x = 4,395.39