Finding the Fourth Proportional to 21,671.15, 32,511.32 and 7,630.61

Step by Step Solution

1. Step 1: Write the proportion equation
   21,671.15 : 32,511.32 = 7,630.61 : x
2. Step 2: Convert to fraction form
   21,671.15/32,511.32 = 7,630.61/x
3. Step 3: Cross multiply
   21,671.15x = 32,511.32 × 7,630.61
4. Step 4: Simplify right side
   21,671.15x = 248,081,002.80
5. Step 5: Solve for x
   x = 248,081,002.80/21,671.15
6. Step 6: Final answer
   x = 11,447.53