Finding the Fourth Proportional to 250,458.25, 345,667.83 and 154,995.70

Step by Step Solution

1. Step 1: Write the proportion equation
   250,458.25 : 345,667.83 = 154,995.70 : x
2. Step 2: Convert to fraction form
   250,458.25/345,667.83 = 154,995.70/x
3. Step 3: Cross multiply
   250,458.25x = 345,667.83 × 154,995.70
4. Step 4: Simplify right side
   250,458.25x = 53,577,024,775.01
5. Step 5: Solve for x
   x = 53,577,024,775.01/250,458.25
6. Step 6: Final answer
   x = 213,916.00