Finding the Fourth Proportional to 7,359.44, 10,155.72 and 4,215.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,359.44 : 10,155.72 = 4,215.92 : x
2. Step 2: Convert to fraction form
   7,359.44/10,155.72 = 4,215.92/x
3. Step 3: Cross multiply
   7,359.44x = 10,155.72 × 4,215.92
4. Step 4: Simplify right side
   7,359.44x = 42,815,703.06
5. Step 5: Solve for x
   x = 42,815,703.06/7,359.44
6. Step 6: Final answer
   x = 5,817.79