Finding the Fourth Proportional to 5,013.72, 7,521.59 and 3,454.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,013.72 : 7,521.59 = 3,454.47 : x
2. Step 2: Convert to fraction form
   5,013.72/7,521.59 = 3,454.47/x
3. Step 3: Cross multiply
   5,013.72x = 7,521.59 × 3,454.47
4. Step 4: Simplify right side
   5,013.72x = 25,983,115.64
5. Step 5: Solve for x
   x = 25,983,115.64/5,013.72
6. Step 6: Final answer
   x = 5,182.40