Finding the Fourth Proportional to 8,483.62, 12,725.83 and 7,000.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,483.62 : 12,725.83 = 7,000.09 : x
2. Step 2: Convert to fraction form
   8,483.62/12,725.83 = 7,000.09/x
3. Step 3: Cross multiply
   8,483.62x = 12,725.83 × 7,000.09
4. Step 4: Simplify right side
   8,483.62x = 89,081,955.32
5. Step 5: Solve for x
   x = 89,081,955.32/8,483.62
6. Step 6: Final answer
   x = 10,500.47