Finding the Fourth Proportional to 6,405.07, 8,838.72 and 4,725.87

Step by Step Solution

1. Step 1: Write the proportion equation
   6,405.07 : 8,838.72 = 4,725.87 : x
2. Step 2: Convert to fraction form
   6,405.07/8,838.72 = 4,725.87/x
3. Step 3: Cross multiply
   6,405.07x = 8,838.72 × 4,725.87
4. Step 4: Simplify right side
   6,405.07x = 41,770,641.69
5. Step 5: Solve for x
   x = 41,770,641.69/6,405.07
6. Step 6: Final answer
   x = 6,521.50