Finding the Fourth Proportional to 19,196.28, 28,784.61 and 14,408.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,196.28 : 28,784.61 = 14,408.69 : x
2. Step 2: Convert to fraction form
   19,196.28/28,784.61 = 14,408.69/x
3. Step 3: Cross multiply
   19,196.28x = 28,784.61 × 14,408.69
4. Step 4: Simplify right side
   19,196.28x = 414,748,378.34
5. Step 5: Solve for x
   x = 414,748,378.34/19,196.28
6. Step 6: Final answer
   x = 21,605.66