Finding the Fourth Proportional to 10,489.78, 14,475.90 and 5,773.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,489.78 : 14,475.90 = 5,773.96 : x
2. Step 2: Convert to fraction form
   10,489.78/14,475.90 = 5,773.96/x
3. Step 3: Cross multiply
   10,489.78x = 14,475.90 × 5,773.96
4. Step 4: Simplify right side
   10,489.78x = 83,583,267.56
5. Step 5: Solve for x
   x = 83,583,267.56/10,489.78
6. Step 6: Final answer
   x = 7,968.07