Finding the Fourth Proportional to 71,457.72, 98,612.22 and 39,626.55

Step by Step Solution

1. Step 1: Write the proportion equation
   71,457.72 : 98,612.22 = 39,626.55 : x
2. Step 2: Convert to fraction form
   71,457.72/98,612.22 = 39,626.55/x
3. Step 3: Cross multiply
   71,457.72x = 98,612.22 × 39,626.55
4. Step 4: Simplify right side
   71,457.72x = 3,907,662,066.44
5. Step 5: Solve for x
   x = 3,907,662,066.44/71,457.72
6. Step 6: Final answer
   x = 54,684.95