Finding the Fourth Proportional to 139,037.55, 208,554.17 and 33,855.63

Step by Step Solution

1. Step 1: Write the proportion equation
   139,037.55 : 208,554.17 = 33,855.63 : x
2. Step 2: Convert to fraction form
   139,037.55/208,554.17 = 33,855.63/x
3. Step 3: Cross multiply
   139,037.55x = 208,554.17 × 33,855.63
4. Step 4: Simplify right side
   139,037.55x = 7,060,732,645.20
5. Step 5: Solve for x
   x = 7,060,732,645.20/139,037.55
6. Step 6: Final answer
   x = 50,782.92