Finding the Fourth Proportional to 10,128.54, 15,191.55 and 2,733.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,128.54 : 15,191.55 = 2,733.55 : x
2. Step 2: Convert to fraction form
   10,128.54/15,191.55 = 2,733.55/x
3. Step 3: Cross multiply
   10,128.54x = 15,191.55 × 2,733.55
4. Step 4: Simplify right side
   10,128.54x = 41,526,823.52
5. Step 5: Solve for x
   x = 41,526,823.52/10,128.54
6. Step 6: Final answer
   x = 4,099.98