Finding the Fourth Proportional to 139,900.52, 208,768.69 and 124,948.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139,900.52 : 208,768.69 = 124,948.52 : x
2. Step 2: Convert to fraction form
   139,900.52/208,768.69 = 124,948.52/x
3. Step 3: Cross multiply
   139,900.52x = 208,768.69 × 124,948.52
4. Step 4: Simplify right side
   139,900.52x = 26,085,338,837.84
5. Step 5: Solve for x
   x = 26,085,338,837.84/139,900.52
6. Step 6: Final answer
   x = 186,456.34