Finding the Fourth Proportional to 5,002.82, 7,507.47 and 2,815.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,002.82 : 7,507.47 = 2,815.82 : x
2. Step 2: Convert to fraction form
   5,002.82/7,507.47 = 2,815.82/x
3. Step 3: Cross multiply
   5,002.82x = 7,507.47 × 2,815.82
4. Step 4: Simplify right side
   5,002.82x = 21,139,684.18
5. Step 5: Solve for x
   x = 21,139,684.18/5,002.82
6. Step 6: Final answer
   x = 4,225.55