Finding the Fourth Proportional to 7,292.96, 10,064.72 and 5,521.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,292.96 : 10,064.72 = 5,521.76 : x
2. Step 2: Convert to fraction form
   7,292.96/10,064.72 = 5,521.76/x
3. Step 3: Cross multiply
   7,292.96x = 10,064.72 × 5,521.76
4. Step 4: Simplify right side
   7,292.96x = 55,574,968.31
5. Step 5: Solve for x
   x = 55,574,968.31/7,292.96
6. Step 6: Final answer
   x = 7,620.36