Finding the Fourth Proportional to 3,572.82, 5,347.89 and 3,436.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,572.82 : 5,347.89 = 3,436.74 : x
2. Step 2: Convert to fraction form
   3,572.82/5,347.89 = 3,436.74/x
3. Step 3: Cross multiply
   3,572.82x = 5,347.89 × 3,436.74
4. Step 4: Simplify right side
   3,572.82x = 18,379,307.48
5. Step 5: Solve for x
   x = 18,379,307.48/3,572.82
6. Step 6: Final answer
   x = 5,144.20