Finding the Fourth Proportional to 5,274.31, 7,906.91 and 2,499.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,274.31 : 7,906.91 = 2,499.56 : x
2. Step 2: Convert to fraction form
   5,274.31/7,906.91 = 2,499.56/x
3. Step 3: Cross multiply
   5,274.31x = 7,906.91 × 2,499.56
4. Step 4: Simplify right side
   5,274.31x = 19,763,803.23
5. Step 5: Solve for x
   x = 19,763,803.23/5,274.31
6. Step 6: Final answer
   x = 3,747.18