Finding the Fourth Proportional to 312,267, 468,413.46 and 90,651

Step by Step Solution

1. Step 1: Write the proportion equation
   312,267 : 468,413.46 = 90,651 : x
2. Step 2: Convert to fraction form
   312,267/468,413.46 = 90,651/x
3. Step 3: Cross multiply
   312,267x = 468,413.46 × 90,651
4. Step 4: Simplify right side
   312,267x = 42,462,148,562.46
5. Step 5: Solve for x
   x = 42,462,148,562.46/312,267
6. Step 6: Final answer
   x = 135,980.26