Finding the Fourth Proportional to 9,971.46, 13,762.58 and 5,725.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971.46 : 13,762.58 = 5,725.38 : x
2. Step 2: Convert to fraction form
   9,971.46/13,762.58 = 5,725.38/x
3. Step 3: Cross multiply
   9,971.46x = 13,762.58 × 5,725.38
4. Step 4: Simplify right side
   9,971.46x = 78,796,000.28
5. Step 5: Solve for x
   x = 78,796,000.28/9,971.46
6. Step 6: Final answer
   x = 7,902.15