Finding the Fourth Proportional to 7,722.89, 10,658.73 and 4,890.53

Step by Step Solution

1. Step 1: Write the proportion equation
   7,722.89 : 10,658.73 = 4,890.53 : x
2. Step 2: Convert to fraction form
   7,722.89/10,658.73 = 4,890.53/x
3. Step 3: Cross multiply
   7,722.89x = 10,658.73 × 4,890.53
4. Step 4: Simplify right side
   7,722.89x = 52,126,773.31
5. Step 5: Solve for x
   x = 52,126,773.31/7,722.89
6. Step 6: Final answer
   x = 6,749.64