Finding the Fourth Proportional to 10,510.55, 15,768.12 and 3,115.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,510.55 : 15,768.12 = 3,115.58 : x
2. Step 2: Convert to fraction form
   10,510.55/15,768.12 = 3,115.58/x
3. Step 3: Cross multiply
   10,510.55x = 15,768.12 × 3,115.58
4. Step 4: Simplify right side
   10,510.55x = 49,126,839.31
5. Step 5: Solve for x
   x = 49,126,839.31/10,510.55
6. Step 6: Final answer
   x = 4,674.05