Finding the Fourth Proportional to 13,041.72, 19,566.21 and 4,282.79

Step by Step Solution

1. Step 1: Write the proportion equation
   13,041.72 : 19,566.21 = 4,282.79 : x
2. Step 2: Convert to fraction form
   13,041.72/19,566.21 = 4,282.79/x
3. Step 3: Cross multiply
   13,041.72x = 19,566.21 × 4,282.79
4. Step 4: Simplify right side
   13,041.72x = 83,797,870.69
5. Step 5: Solve for x
   x = 83,797,870.69/13,041.72
6. Step 6: Final answer
   x = 6,425.37