Finding the Fourth Proportional to 5,156.40, 7,112.16 and 3,641.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,156.40 : 7,112.16 = 3,641.52 : x
2. Step 2: Convert to fraction form
   5,156.40/7,112.16 = 3,641.52/x
3. Step 3: Cross multiply
   5,156.40x = 7,112.16 × 3,641.52
4. Step 4: Simplify right side
   5,156.40x = 25,899,072.88
5. Step 5: Solve for x
   x = 25,899,072.88/5,156.40
6. Step 6: Final answer
   x = 5,022.70