Finding the Fourth Proportional to 19,022.72, 28,532.40 and 7,470.24

Step by Step Solution

1. Step 1: Write the proportion equation
   19,022.72 : 28,532.40 = 7,470.24 : x
2. Step 2: Convert to fraction form
   19,022.72/28,532.40 = 7,470.24/x
3. Step 3: Cross multiply
   19,022.72x = 28,532.40 × 7,470.24
4. Step 4: Simplify right side
   19,022.72x = 213,143,875.78
5. Step 5: Solve for x
   x = 213,143,875.78/19,022.72
6. Step 6: Final answer
   x = 11,204.70