Finding the Fourth Proportional to 151,488.77, 209,053.32 and 82,578.07

Step by Step Solution

1. Step 1: Write the proportion equation
   151,488.77 : 209,053.32 = 82,578.07 : x
2. Step 2: Convert to fraction form
   151,488.77/209,053.32 = 82,578.07/x
3. Step 3: Cross multiply
   151,488.77x = 209,053.32 × 82,578.07
4. Step 4: Simplify right side
   151,488.77x = 17,263,219,692.69
5. Step 5: Solve for x
   x = 17,263,219,692.69/151,488.77
6. Step 6: Final answer
   x = 113,957.09