Finding the Fourth Proportional to 5,445.32, 7,514.70 and 3,087.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,445.32 : 7,514.70 = 3,087.40 : x
2. Step 2: Convert to fraction form
   5,445.32/7,514.70 = 3,087.40/x
3. Step 3: Cross multiply
   5,445.32x = 7,514.70 × 3,087.40
4. Step 4: Simplify right side
   5,445.32x = 23,200,884.78
5. Step 5: Solve for x
   x = 23,200,884.78/5,445.32
6. Step 6: Final answer
   x = 4,260.70