Finding the Fourth Proportional to 10,118.72, 15,178.06 and 3,193.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,118.72 : 15,178.06 = 3,193.76 : x
2. Step 2: Convert to fraction form
   10,118.72/15,178.06 = 3,193.76/x
3. Step 3: Cross multiply
   10,118.72x = 15,178.06 × 3,193.76
4. Step 4: Simplify right side
   10,118.72x = 48,475,080.91
5. Step 5: Solve for x
   x = 48,475,080.91/10,118.72
6. Step 6: Final answer
   x = 4,790.63