Finding the Fourth Proportional to 139,146.24, 208,537.92 and 55,994.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,146.24 : 208,537.92 = 55,994.88 : x
2. Step 2: Convert to fraction form
   139,146.24/208,537.92 = 55,994.88/x
3. Step 3: Cross multiply
   139,146.24x = 208,537.92 × 55,994.88
4. Step 4: Simplify right side
   139,146.24x = 11,677,055,805.85
5. Step 5: Solve for x
   x = 11,677,055,805.85/139,146.24
6. Step 6: Final answer
   x = 83,919.31