Finding the Fourth Proportional to 9,705.07, 13,391.31 and 5,725.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,705.07 : 13,391.31 = 5,725.63 : x
2. Step 2: Convert to fraction form
   9,705.07/13,391.31 = 5,725.63/x
3. Step 3: Cross multiply
   9,705.07x = 13,391.31 × 5,725.63
4. Step 4: Simplify right side
   9,705.07x = 76,673,686.28
5. Step 5: Solve for x
   x = 76,673,686.28/9,705.07
6. Step 6: Final answer
   x = 7,900.37