Finding the Fourth Proportional to 139,750.32, 209,360.71 and 82,653.42

Step by Step Solution

1. Step 1: Write the proportion equation
   139,750.32 : 209,360.71 = 82,653.42 : x
2. Step 2: Convert to fraction form
   139,750.32/209,360.71 = 82,653.42/x
3. Step 3: Cross multiply
   139,750.32x = 209,360.71 × 82,653.42
4. Step 4: Simplify right side
   139,750.32x = 17,304,378,281.86
5. Step 5: Solve for x
   x = 17,304,378,281.86/139,750.32
6. Step 6: Final answer
   x = 123,823.53