Finding the Fourth Proportional to 10,174.55, 15,259.76 and 2,778.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,174.55 : 15,259.76 = 2,778.38 : x
2. Step 2: Convert to fraction form
   10,174.55/15,259.76 = 2,778.38/x
3. Step 3: Cross multiply
   10,174.55x = 15,259.76 × 2,778.38
4. Step 4: Simplify right side
   10,174.55x = 42,397,475.28
5. Step 5: Solve for x
   x = 42,397,475.28/10,174.55
6. Step 6: Final answer
   x = 4,167.01