Finding the Fourth Proportional to 10,485.39, 15,725.93 and 4,638.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,485.39 : 15,725.93 = 4,638.27 : x
2. Step 2: Convert to fraction form
   10,485.39/15,725.93 = 4,638.27/x
3. Step 3: Cross multiply
   10,485.39x = 15,725.93 × 4,638.27
4. Step 4: Simplify right side
   10,485.39x = 72,941,086.15
5. Step 5: Solve for x
   x = 72,941,086.15/10,485.39
6. Step 6: Final answer
   x = 6,956.45