Finding the Fourth Proportional to 245,501.67, 338,677.88 and 159,454.53

Step by Step Solution

1. Step 1: Write the proportion equation
   245,501.67 : 338,677.88 = 159,454.53 : x
2. Step 2: Convert to fraction form
   245,501.67/338,677.88 = 159,454.53/x
3. Step 3: Cross multiply
   245,501.67x = 338,677.88 × 159,454.53
4. Step 4: Simplify right side
   245,501.67x = 54,003,721,379.52
5. Step 5: Solve for x
   x = 54,003,721,379.52/245,501.67
6. Step 6: Final answer
   x = 219,972.93