Finding the Fourth Proportional to 82,231.65, 123,424.83 and 77,737.37

Step by Step Solution

1. Step 1: Write the proportion equation
   82,231.65 : 123,424.83 = 77,737.37 : x
2. Step 2: Convert to fraction form
   82,231.65/123,424.83 = 77,737.37/x
3. Step 3: Cross multiply
   82,231.65x = 123,424.83 × 77,737.37
4. Step 4: Simplify right side
   82,231.65x = 9,594,721,059.77
5. Step 5: Solve for x
   x = 9,594,721,059.77/82,231.65
6. Step 6: Final answer
   x = 116,679.17