Finding the Fourth Proportional to 107,471.31, 160,902.81 and 82,141.80

Step by Step Solution

1. Step 1: Write the proportion equation
   107,471.31 : 160,902.81 = 82,141.80 : x
2. Step 2: Convert to fraction form
   107,471.31/160,902.81 = 82,141.80/x
3. Step 3: Cross multiply
   107,471.31x = 160,902.81 × 82,141.80
4. Step 4: Simplify right side
   107,471.31x = 13,216,846,438.46
5. Step 5: Solve for x
   x = 13,216,846,438.46/107,471.31
6. Step 6: Final answer
   x = 122,980.23