Finding the Fourth Proportional to 10,671.15, 16,008.35 and 5,123.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,671.15 : 16,008.35 = 5,123.46 : x
2. Step 2: Convert to fraction form
   10,671.15/16,008.35 = 5,123.46/x
3. Step 3: Cross multiply
   10,671.15x = 16,008.35 × 5,123.46
4. Step 4: Simplify right side
   10,671.15x = 82,018,140.89
5. Step 5: Solve for x
   x = 82,018,140.89/10,671.15
6. Step 6: Final answer
   x = 7,685.97