Finding the Fourth Proportional to 139,042.80, 208,562.04 and 33,860.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,042.80 : 208,562.04 = 33,860.88 : x
2. Step 2: Convert to fraction form
   139,042.80/208,562.04 = 33,860.88/x
3. Step 3: Cross multiply
   139,042.80x = 208,562.04 × 33,860.88
4. Step 4: Simplify right side
   139,042.80x = 7,062,094,209.00
5. Step 5: Solve for x
   x = 7,062,094,209.00/139,042.80
6. Step 6: Final answer
   x = 50,790.79