Finding the Fourth Proportional to 8,500.02, 11,701.31 and 7,005.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,500.02 : 11,701.31 = 7,005.57 : x
2. Step 2: Convert to fraction form
   8,500.02/11,701.31 = 7,005.57/x
3. Step 3: Cross multiply
   8,500.02x = 11,701.31 × 7,005.57
4. Step 4: Simplify right side
   8,500.02x = 81,974,311.27
5. Step 5: Solve for x
   x = 81,974,311.27/8,500.02
6. Step 6: Final answer
   x = 9,644.01