Finding the Fourth Proportional to 250,449.37, 345,655.56 and 154,986.82

Step by Step Solution

1. Step 1: Write the proportion equation
   250,449.37 : 345,655.56 = 154,986.82 : x
2. Step 2: Convert to fraction form
   250,449.37/345,655.56 = 154,986.82/x
3. Step 3: Cross multiply
   250,449.37x = 345,655.56 × 154,986.82
4. Step 4: Simplify right side
   250,449.37x = 53,572,056,059.72
5. Step 5: Solve for x
   x = 53,572,056,059.72/250,449.37
6. Step 6: Final answer
   x = 213,903.74