Finding the Fourth Proportional to 5,242.82, 7,858.71 and 2,320.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,242.82 : 7,858.71 = 2,320.43 : x
2. Step 2: Convert to fraction form
   5,242.82/7,858.71 = 2,320.43/x
3. Step 3: Cross multiply
   5,242.82x = 7,858.71 × 2,320.43
4. Step 4: Simplify right side
   5,242.82x = 18,235,547.15
5. Step 5: Solve for x
   x = 18,235,547.15/5,242.82
6. Step 6: Final answer
   x = 3,478.20