Finding the Fourth Proportional to 19,149.18, 28,724.25 and 5,298.30

Step by Step Solution

1. Step 1: Write the proportion equation
   19,149.18 : 28,724.25 = 5,298.30 : x
2. Step 2: Convert to fraction form
   19,149.18/28,724.25 = 5,298.30/x
3. Step 3: Cross multiply
   19,149.18x = 28,724.25 × 5,298.30
4. Step 4: Simplify right side
   19,149.18x = 152,189,693.78
5. Step 5: Solve for x
   x = 152,189,693.78/19,149.18
6. Step 6: Final answer
   x = 7,947.58