Finding the Fourth Proportional to 7,290.72, 10,925.76 and 4,164.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,290.72 : 10,925.76 = 4,164.32 : x
2. Step 2: Convert to fraction form
   7,290.72/10,925.76 = 4,164.32/x
3. Step 3: Cross multiply
   7,290.72x = 10,925.76 × 4,164.32
4. Step 4: Simplify right side
   7,290.72x = 45,498,360.88
5. Step 5: Solve for x
   x = 45,498,360.88/7,290.72
6. Step 6: Final answer
   x = 6,240.59