Finding the Fourth Proportional to 3,700.17, 5,094.72 and 3,138.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,700.17 : 5,094.72 = 3,138.84 : x
2. Step 2: Convert to fraction form
   3,700.17/5,094.72 = 3,138.84/x
3. Step 3: Cross multiply
   3,700.17x = 5,094.72 × 3,138.84
4. Step 4: Simplify right side
   3,700.17x = 15,991,510.92
5. Step 5: Solve for x
   x = 15,991,510.92/3,700.17
6. Step 6: Final answer
   x = 4,321.83