Finding the Fourth Proportional to 12,123.76, 16,725.14 and 7,874.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.76 : 16,725.14 = 7,874.52 : x
2. Step 2: Convert to fraction form
   12,123.76/16,725.14 = 7,874.52/x
3. Step 3: Cross multiply
   12,123.76x = 16,725.14 × 7,874.52
4. Step 4: Simplify right side
   12,123.76x = 131,702,449.43
5. Step 5: Solve for x
   x = 131,702,449.43/12,123.76
6. Step 6: Final answer
   x = 10,863.17