Finding the Fourth Proportional to 19,542.24, 29,296.89 and 13,284.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,542.24 : 29,296.89 = 13,284.72 : x
2. Step 2: Convert to fraction form
   19,542.24/29,296.89 = 13,284.72/x
3. Step 3: Cross multiply
   19,542.24x = 29,296.89 × 13,284.72
4. Step 4: Simplify right side
   19,542.24x = 389,200,980.52
5. Step 5: Solve for x
   x = 389,200,980.52/19,542.24
6. Step 6: Final answer
   x = 19,915.88