Finding the Fourth Proportional to 3,588.59, 5,351.48 and 3,555.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,588.59 : 5,351.48 = 3,555.78 : x
2. Step 2: Convert to fraction form
   3,588.59/5,351.48 = 3,555.78/x
3. Step 3: Cross multiply
   3,588.59x = 5,351.48 × 3,555.78
4. Step 4: Simplify right side
   3,588.59x = 19,028,667.78
5. Step 5: Solve for x
   x = 19,028,667.78/3,588.59
6. Step 6: Final answer
   x = 5,302.55