Finding the Fourth Proportional to 8,630.88, 12,948.63 and 4,680.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,630.88 : 12,948.63 = 4,680.42 : x
2. Step 2: Convert to fraction form
   8,630.88/12,948.63 = 4,680.42/x
3. Step 3: Cross multiply
   8,630.88x = 12,948.63 × 4,680.42
4. Step 4: Simplify right side
   8,630.88x = 60,605,026.82
5. Step 5: Solve for x
   x = 60,605,026.82/8,630.88
6. Step 6: Final answer
   x = 7,021.88