Finding the Fourth Proportional to 71,080.68, 106,568.46 and 42,993.96

Step by Step Solution

1. Step 1: Write the proportion equation
   71,080.68 : 106,568.46 = 42,993.96 : x
2. Step 2: Convert to fraction form
   71,080.68/106,568.46 = 42,993.96/x
3. Step 3: Cross multiply
   71,080.68x = 106,568.46 × 42,993.96
4. Step 4: Simplify right side
   71,080.68x = 4,581,800,106.50
5. Step 5: Solve for x
   x = 4,581,800,106.50/71,080.68
6. Step 6: Final answer
   x = 64,459.15