Finding the Fourth Proportional to 64,626.39, 89,185.05 and 39,475.89

Step by Step Solution

1. Step 1: Write the proportion equation
   64,626.39 : 89,185.05 = 39,475.89 : x
2. Step 2: Convert to fraction form
   64,626.39/89,185.05 = 39,475.89/x
3. Step 3: Cross multiply
   64,626.39x = 89,185.05 × 39,475.89
4. Step 4: Simplify right side
   64,626.39x = 3,520,659,223.44
5. Step 5: Solve for x
   x = 3,520,659,223.44/64,626.39
6. Step 6: Final answer
   x = 54,477.11