Finding the Fourth Proportional to 139,885.07, 210,010.52 and 83,062.73

Step by Step Solution

1. Step 1: Write the proportion equation
   139,885.07 : 210,010.52 = 83,062.73 : x
2. Step 2: Convert to fraction form
   139,885.07/210,010.52 = 83,062.73/x
3. Step 3: Cross multiply
   139,885.07x = 210,010.52 × 83,062.73
4. Step 4: Simplify right side
   139,885.07x = 17,444,047,119.92
5. Step 5: Solve for x
   x = 17,444,047,119.92/139,885.07
6. Step 6: Final answer
   x = 124,702.71