Finding the Fourth Proportional to 8,875.44, 12,245.40 and 5,148.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,875.44 : 12,245.40 = 5,148.72 : x
2. Step 2: Convert to fraction form
   8,875.44/12,245.40 = 5,148.72/x
3. Step 3: Cross multiply
   8,875.44x = 12,245.40 × 5,148.72
4. Step 4: Simplify right side
   8,875.44x = 63,048,135.89
5. Step 5: Solve for x
   x = 63,048,135.89/8,875.44
6. Step 6: Final answer
   x = 7,103.66