Finding the Fourth Proportional to 10,505.31, 14,497.43 and 5,789.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505.31 : 14,497.43 = 5,789.76 : x
2. Step 2: Convert to fraction form
   10,505.31/14,497.43 = 5,789.76/x
3. Step 3: Cross multiply
   10,505.31x = 14,497.43 × 5,789.76
4. Step 4: Simplify right side
   10,505.31x = 83,936,611.37
5. Step 5: Solve for x
   x = 83,936,611.37/10,505.31
6. Step 6: Final answer
   x = 7,989.92