Finding the Fourth Proportional to 65,026.14, 89,733.12 and 40,839.60

Step by Step Solution

1. Step 1: Write the proportion equation
   65,026.14 : 89,733.12 = 40,839.60 : x
2. Step 2: Convert to fraction form
   65,026.14/89,733.12 = 40,839.60/x
3. Step 3: Cross multiply
   65,026.14x = 89,733.12 × 40,839.60
4. Step 4: Simplify right side
   65,026.14x = 3,664,664,727.55
5. Step 5: Solve for x
   x = 3,664,664,727.55/65,026.14
6. Step 6: Final answer
   x = 56,356.79