Finding the Fourth Proportional to 19,411.20, 29,114.56 and 5,372.24

Step by Step Solution

1. Step 1: Write the proportion equation
   19,411.20 : 29,114.56 = 5,372.24 : x
2. Step 2: Convert to fraction form
   19,411.20/29,114.56 = 5,372.24/x
3. Step 3: Cross multiply
   19,411.20x = 29,114.56 × 5,372.24
4. Step 4: Simplify right side
   19,411.20x = 156,410,403.81
5. Step 5: Solve for x
   x = 156,410,403.81/19,411.20
6. Step 6: Final answer
   x = 8,057.74