Finding the Fourth Proportional to 13,002.88, 19,499.70 and 4,236.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,002.88 : 19,499.70 = 4,236.16 : x
2. Step 2: Convert to fraction form
   13,002.88/19,499.70 = 4,236.16/x
3. Step 3: Cross multiply
   13,002.88x = 19,499.70 × 4,236.16
4. Step 4: Simplify right side
   13,002.88x = 82,603,849.15
5. Step 5: Solve for x
   x = 82,603,849.15/13,002.88
6. Step 6: Final answer
   x = 6,352.73