Finding the Fourth Proportional to 8,739.42, 13,109.31 and 3,475.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,739.42 : 13,109.31 = 3,475.32 : x
2. Step 2: Convert to fraction form
   8,739.42/13,109.31 = 3,475.32/x
3. Step 3: Cross multiply
   8,739.42x = 13,109.31 × 3,475.32
4. Step 4: Simplify right side
   8,739.42x = 45,559,047.23
5. Step 5: Solve for x
   x = 45,559,047.23/8,739.42
6. Step 6: Final answer
   x = 5,213.05