Finding the Fourth Proportional to 12,750.66, 17,595.72 and 7,085.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,750.66 : 17,595.72 = 7,085.37 : x
2. Step 2: Convert to fraction form
   12,750.66/17,595.72 = 7,085.37/x
3. Step 3: Cross multiply
   12,750.66x = 17,595.72 × 7,085.37
4. Step 4: Simplify right side
   12,750.66x = 124,672,186.62
5. Step 5: Solve for x
   x = 124,672,186.62/12,750.66
6. Step 6: Final answer
   x = 9,777.70