Finding the Fourth Proportional to 5,515.56, 7,612.38 and 5,333.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,515.56 : 7,612.38 = 5,333.31 : x
2. Step 2: Convert to fraction form
   5,515.56/7,612.38 = 5,333.31/x
3. Step 3: Cross multiply
   5,515.56x = 7,612.38 × 5,333.31
4. Step 4: Simplify right side
   5,515.56x = 40,599,182.38
5. Step 5: Solve for x
   x = 40,599,182.38/5,515.56
6. Step 6: Final answer
   x = 7,360.85