Finding the Fourth Proportional to 139,881.07, 210,004.52 and 83,058.73

Step by Step Solution

1. Step 1: Write the proportion equation
   139,881.07 : 210,004.52 = 83,058.73 : x
2. Step 2: Convert to fraction form
   139,881.07/210,004.52 = 83,058.73/x
3. Step 3: Cross multiply
   139,881.07x = 210,004.52 × 83,058.73
4. Step 4: Simplify right side
   139,881.07x = 17,442,708,725.46
5. Step 5: Solve for x
   x = 17,442,708,725.46/139,881.07
6. Step 6: Final answer
   x = 124,696.71