Finding the Fourth Proportional to 139,041.80, 208,560.54 and 33,859.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,041.80 : 208,560.54 = 33,859.88 : x
2. Step 2: Convert to fraction form
   139,041.80/208,560.54 = 33,859.88/x
3. Step 3: Cross multiply
   139,041.80x = 208,560.54 × 33,859.88
4. Step 4: Simplify right side
   139,041.80x = 7,061,834,857.14
5. Step 5: Solve for x
   x = 7,061,834,857.14/139,041.80
6. Step 6: Final answer
   x = 50,789.29