Finding the Fourth Proportional to 10,483.83, 15,728.45 and 3,087.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,483.83 : 15,728.45 = 3,087.99 : x
2. Step 2: Convert to fraction form
   10,483.83/15,728.45 = 3,087.99/x
3. Step 3: Cross multiply
   10,483.83x = 15,728.45 × 3,087.99
4. Step 4: Simplify right side
   10,483.83x = 48,569,280.88
5. Step 5: Solve for x
   x = 48,569,280.88/10,483.83
6. Step 6: Final answer
   x = 4,632.78