Finding the Fourth Proportional to 12,770.81, 17,628.48 and 7,467.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,770.81 : 17,628.48 = 7,467.33 : x
2. Step 2: Convert to fraction form
   12,770.81/17,628.48 = 7,467.33/x
3. Step 3: Cross multiply
   12,770.81x = 17,628.48 × 7,467.33
4. Step 4: Simplify right side
   12,770.81x = 131,637,677.56
5. Step 5: Solve for x
   x = 131,637,677.56/12,770.81
6. Step 6: Final answer
   x = 10,307.70