Finding the Fourth Proportional to 5,885.55, 8,122.95 and 3,528.09

Step by Step Solution

1. Step 1: Write the proportion equation
   5,885.55 : 8,122.95 = 3,528.09 : x
2. Step 2: Convert to fraction form
   5,885.55/8,122.95 = 3,528.09/x
3. Step 3: Cross multiply
   5,885.55x = 8,122.95 × 3,528.09
4. Step 4: Simplify right side
   5,885.55x = 28,658,498.67
5. Step 5: Solve for x
   x = 28,658,498.67/5,885.55
6. Step 6: Final answer
   x = 4,869.30