Finding the Fourth Proportional to 5,505.25, 8,260.18 and 3,426.99

Step by Step Solution

1. Step 1: Write the proportion equation
   5,505.25 : 8,260.18 = 3,426.99 : x
2. Step 2: Convert to fraction form
   5,505.25/8,260.18 = 3,426.99/x
3. Step 3: Cross multiply
   5,505.25x = 8,260.18 × 3,426.99
4. Step 4: Simplify right side
   5,505.25x = 28,307,537.89
5. Step 5: Solve for x
   x = 28,307,537.89/5,505.25
6. Step 6: Final answer
   x = 5,141.92