Finding the Fourth Proportional to 149,279.31, 205,996.10 and 82,211.31

Step by Step Solution

1. Step 1: Write the proportion equation
   149,279.31 : 205,996.10 = 82,211.31 : x
2. Step 2: Convert to fraction form
   149,279.31/205,996.10 = 82,211.31/x
3. Step 3: Cross multiply
   149,279.31x = 205,996.10 × 82,211.31
4. Step 4: Simplify right side
   149,279.31x = 16,935,208,824.83
5. Step 5: Solve for x
   x = 16,935,208,824.83/149,279.31
6. Step 6: Final answer
   x = 113,446.46