Finding the Fourth Proportional to 3,641.12, 5,039.18 and 3,553.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,641.12 : 5,039.18 = 3,553.76 : x
2. Step 2: Convert to fraction form
   3,641.12/5,039.18 = 3,553.76/x
3. Step 3: Cross multiply
   3,641.12x = 5,039.18 × 3,553.76
4. Step 4: Simplify right side
   3,641.12x = 17,908,018.55
5. Step 5: Solve for x
   x = 17,908,018.55/3,641.12
6. Step 6: Final answer
   x = 4,918.28