Finding the Fourth Proportional to 10,505.72, 14,497.70 and 5,725.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505.72 : 14,497.70 = 5,725.71 : x
2. Step 2: Convert to fraction form
   10,505.72/14,497.70 = 5,725.71/x
3. Step 3: Cross multiply
   10,505.72x = 14,497.70 × 5,725.71
4. Step 4: Simplify right side
   10,505.72x = 83,009,553.38
5. Step 5: Solve for x
   x = 83,009,553.38/10,505.72
6. Step 6: Final answer
   x = 7,901.37