Finding the Fourth Proportional to 6,913.59, 10,372.20 and 3,625.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,913.59 : 10,372.20 = 3,625.80 : x
2. Step 2: Convert to fraction form
   6,913.59/10,372.20 = 3,625.80/x
3. Step 3: Cross multiply
   6,913.59x = 10,372.20 × 3,625.80
4. Step 4: Simplify right side
   6,913.59x = 37,607,522.76
5. Step 5: Solve for x
   x = 37,607,522.76/6,913.59
6. Step 6: Final answer
   x = 5,439.65