Finding the Fourth Proportional to 51,056.10, 70,456.77 and 28,395

Step by Step Solution

1. Step 1: Write the proportion equation
   51,056.10 : 70,456.77 = 28,395 : x
2. Step 2: Convert to fraction form
   51,056.10/70,456.77 = 28,395/x
3. Step 3: Cross multiply
   51,056.10x = 70,456.77 × 28,395
4. Step 4: Simplify right side
   51,056.10x = 2,000,619,984.15
5. Step 5: Solve for x
   x = 2,000,619,984.15/51,056.10
6. Step 6: Final answer
   x = 39,184.74