Finding the Fourth Proportional to 6,340.51, 8,749.74 and 3,507.81

Step by Step Solution

1. Step 1: Write the proportion equation
   6,340.51 : 8,749.74 = 3,507.81 : x
2. Step 2: Convert to fraction form
   6,340.51/8,749.74 = 3,507.81/x
3. Step 3: Cross multiply
   6,340.51x = 8,749.74 × 3,507.81
4. Step 4: Simplify right side
   6,340.51x = 30,692,425.47
5. Step 5: Solve for x
   x = 30,692,425.47/6,340.51
6. Step 6: Final answer
   x = 4,840.69