Finding the Fourth Proportional to 6,139.59, 8,473.43 and 3,749.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,139.59 : 8,473.43 = 3,749.05 : x
2. Step 2: Convert to fraction form
   6,139.59/8,473.43 = 3,749.05/x
3. Step 3: Cross multiply
   6,139.59x = 8,473.43 × 3,749.05
4. Step 4: Simplify right side
   6,139.59x = 31,767,312.74
5. Step 5: Solve for x
   x = 31,767,312.74/6,139.59
6. Step 6: Final answer
   x = 5,174.17