Finding the Fourth Proportional to 19,404.30, 29,100.69 and 15,516.30

Step by Step Solution

1. Step 1: Write the proportion equation
   19,404.30 : 29,100.69 = 15,516.30 : x
2. Step 2: Convert to fraction form
   19,404.30/29,100.69 = 15,516.30/x
3. Step 3: Cross multiply
   19,404.30x = 29,100.69 × 15,516.30
4. Step 4: Simplify right side
   19,404.30x = 451,535,036.25
5. Step 5: Solve for x
   x = 451,535,036.25/19,404.30
6. Step 6: Final answer
   x = 23,269.84