Finding the Fourth Proportional to 151,389.37, 208,917.52 and 82,478.49

Step by Step Solution

1. Step 1: Write the proportion equation
   151,389.37 : 208,917.52 = 82,478.49 : x
2. Step 2: Convert to fraction form
   151,389.37/208,917.52 = 82,478.49/x
3. Step 3: Cross multiply
   151,389.37x = 208,917.52 × 82,478.49
4. Step 4: Simplify right side
   151,389.37x = 17,231,200,539.56
5. Step 5: Solve for x
   x = 17,231,200,539.56/151,389.37
6. Step 6: Final answer
   x = 113,820.42