Finding the Fourth Proportional to 13,150.76, 19,726.20 and 3,289.95

Step by Step Solution

1. Step 1: Write the proportion equation
   13,150.76 : 19,726.20 = 3,289.95 : x
2. Step 2: Convert to fraction form
   13,150.76/19,726.20 = 3,289.95/x
3. Step 3: Cross multiply
   13,150.76x = 19,726.20 × 3,289.95
4. Step 4: Simplify right side
   13,150.76x = 64,898,211.69
5. Step 5: Solve for x
   x = 64,898,211.69/13,150.76
6. Step 6: Final answer
   x = 4,934.94