Finding the Fourth Proportional to 150,758.82, 208,051.13 and 82,780.18

Step by Step Solution

1. Step 1: Write the proportion equation
   150,758.82 : 208,051.13 = 82,780.18 : x
2. Step 2: Convert to fraction form
   150,758.82/208,051.13 = 82,780.18/x
3. Step 3: Cross multiply
   150,758.82x = 208,051.13 × 82,780.18
4. Step 4: Simplify right side
   150,758.82x = 17,222,509,677.43
5. Step 5: Solve for x
   x = 17,222,509,677.43/150,758.82
6. Step 6: Final answer
   x = 114,238.82