Finding the Fourth Proportional to 8,330.72, 12,493.32 and 2,782.41

Step by Step Solution

1. Step 1: Write the proportion equation
   8,330.72 : 12,493.32 = 2,782.41 : x
2. Step 2: Convert to fraction form
   8,330.72/12,493.32 = 2,782.41/x
3. Step 3: Cross multiply
   8,330.72x = 12,493.32 × 2,782.41
4. Step 4: Simplify right side
   8,330.72x = 34,761,538.50
5. Step 5: Solve for x
   x = 34,761,538.50/8,330.72
6. Step 6: Final answer
   x = 4,172.70