Finding the Fourth Proportional to 10,105.98, 15,156.81 and 3,178.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.98 : 15,156.81 = 3,178.94 : x
2. Step 2: Convert to fraction form
   10,105.98/15,156.81 = 3,178.94/x
3. Step 3: Cross multiply
   10,105.98x = 15,156.81 × 3,178.94
4. Step 4: Simplify right side
   10,105.98x = 48,182,589.58
5. Step 5: Solve for x
   x = 48,182,589.58/10,105.98
6. Step 6: Final answer
   x = 4,767.73