Finding the Fourth Proportional to 12,770.50, 17,623.38 and 7,181.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,770.50 : 17,623.38 = 7,181.50 : x
2. Step 2: Convert to fraction form
   12,770.50/17,623.38 = 7,181.50/x
3. Step 3: Cross multiply
   12,770.50x = 17,623.38 × 7,181.50
4. Step 4: Simplify right side
   12,770.50x = 126,562,303.47
5. Step 5: Solve for x
   x = 126,562,303.47/12,770.50
6. Step 6: Final answer
   x = 9,910.52