Finding the Fourth Proportional to 5,703.78, 8,547.89 and 3,620.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,703.78 : 8,547.89 = 3,620.05 : x
2. Step 2: Convert to fraction form
   5,703.78/8,547.89 = 3,620.05/x
3. Step 3: Cross multiply
   5,703.78x = 8,547.89 × 3,620.05
4. Step 4: Simplify right side
   5,703.78x = 30,943,789.19
5. Step 5: Solve for x
   x = 30,943,789.19/5,703.78
6. Step 6: Final answer
   x = 5,425.14