Finding the Fourth Proportional to 250,667.24, 345,902.82 and 137,471.72

Step by Step Solution

1. Step 1: Write the proportion equation
   250,667.24 : 345,902.82 = 137,471.72 : x
2. Step 2: Convert to fraction form
   250,667.24/345,902.82 = 137,471.72/x
3. Step 3: Cross multiply
   250,667.24x = 345,902.82 × 137,471.72
4. Step 4: Simplify right side
   250,667.24x = 47,551,855,618.25
5. Step 5: Solve for x
   x = 47,551,855,618.25/250,667.24
6. Step 6: Final answer
   x = 189,701.12