Finding the Fourth Proportional to 5,290.31, 7,300.46 and 3,194.07

Step by Step Solution

1. Step 1: Write the proportion equation
   5,290.31 : 7,300.46 = 3,194.07 : x
2. Step 2: Convert to fraction form
   5,290.31/7,300.46 = 3,194.07/x
3. Step 3: Cross multiply
   5,290.31x = 7,300.46 × 3,194.07
4. Step 4: Simplify right side
   5,290.31x = 23,318,164.30
5. Step 5: Solve for x
   x = 23,318,164.30/5,290.31
6. Step 6: Final answer
   x = 4,407.71