Finding the Fourth Proportional to 13,152.16, 19,728.29 and 3,291.41

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152.16 : 19,728.29 = 3,291.41 : x
2. Step 2: Convert to fraction form
   13,152.16/19,728.29 = 3,291.41/x
3. Step 3: Cross multiply
   13,152.16x = 19,728.29 × 3,291.41
4. Step 4: Simplify right side
   13,152.16x = 64,933,775.89
5. Step 5: Solve for x
   x = 64,933,775.89/13,152.16
6. Step 6: Final answer
   x = 4,937.12