Finding the Fourth Proportional to 250,429.67, 375,667.71 and 90,545.60

Step by Step Solution

1. Step 1: Write the proportion equation
   250,429.67 : 375,667.71 = 90,545.60 : x
2. Step 2: Convert to fraction form
   250,429.67/375,667.71 = 90,545.60/x
3. Step 3: Cross multiply
   250,429.67x = 375,667.71 × 90,545.60
4. Step 4: Simplify right side
   250,429.67x = 34,015,056,324.24
5. Step 5: Solve for x
   x = 34,015,056,324.24/250,429.67
6. Step 6: Final answer
   x = 135,826.79