Finding the Fourth Proportional to 51,196.37, 70,642.43 and 28,530.39

Step by Step Solution

1. Step 1: Write the proportion equation
   51,196.37 : 70,642.43 = 28,530.39 : x
2. Step 2: Convert to fraction form
   51,196.37/70,642.43 = 28,530.39/x
3. Step 3: Cross multiply
   51,196.37x = 70,642.43 × 28,530.39
4. Step 4: Simplify right side
   51,196.37x = 2,015,455,935.80
5. Step 5: Solve for x
   x = 2,015,455,935.80/51,196.37
6. Step 6: Final answer
   x = 39,367.17