Finding the Fourth Proportional to 19,020.18, 28,470.50 and 13,062.18

Step by Step Solution

1. Step 1: Write the proportion equation
   19,020.18 : 28,470.50 = 13,062.18 : x
2. Step 2: Convert to fraction form
   19,020.18/28,470.50 = 13,062.18/x
3. Step 3: Cross multiply
   19,020.18x = 28,470.50 × 13,062.18
4. Step 4: Simplify right side
   19,020.18x = 371,886,795.69
5. Step 5: Solve for x
   x = 371,886,795.69/19,020.18
6. Step 6: Final answer
   x = 19,552.22