Finding the Fourth Proportional to 10,761.41, 16,139.03 and 4,186.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,761.41 : 16,139.03 = 4,186.05 : x
2. Step 2: Convert to fraction form
   10,761.41/16,139.03 = 4,186.05/x
3. Step 3: Cross multiply
   10,761.41x = 16,139.03 × 4,186.05
4. Step 4: Simplify right side
   10,761.41x = 67,558,882.46
5. Step 5: Solve for x
   x = 67,558,882.46/10,761.41
6. Step 6: Final answer
   x = 6,277.89