Finding the Fourth Proportional to 139,049.84, 191,786.82 and 91,285.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,049.84 : 191,786.82 = 91,285.76 : x
2. Step 2: Convert to fraction form
   139,049.84/191,786.82 = 91,285.76/x
3. Step 3: Cross multiply
   139,049.84x = 191,786.82 × 91,285.76
4. Step 4: Simplify right side
   139,049.84x = 17,507,405,621.68
5. Step 5: Solve for x
   x = 17,507,405,621.68/139,049.84
6. Step 6: Final answer
   x = 125,907.41