Finding the Fourth Proportional to 12,148.34, 16,766.06 and 7,671.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,148.34 : 16,766.06 = 7,671.87 : x
2. Step 2: Convert to fraction form
   12,148.34/16,766.06 = 7,671.87/x
3. Step 3: Cross multiply
   12,148.34x = 16,766.06 × 7,671.87
4. Step 4: Simplify right side
   12,148.34x = 128,626,994.37
5. Step 5: Solve for x
   x = 128,626,994.37/12,148.34
6. Step 6: Final answer
   x = 10,588.03