Finding the Fourth Proportional to 3,670.55, 4,958.89 and 3,670.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670.55 : 4,958.89 = 3,670.55 : x
2. Step 2: Convert to fraction form
   3,670.55/4,958.89 = 3,670.55/x
3. Step 3: Cross multiply
   3,670.55x = 4,958.89 × 3,670.55
4. Step 4: Simplify right side
   3,670.55x = 18,201,853.69
5. Step 5: Solve for x
   x = 18,201,853.69/3,670.55
6. Step 6: Final answer
   x = 4,958.89