Finding the Fourth Proportional to 81,600.84, 122,413.59 and 28,997.82

Step by Step Solution

1. Step 1: Write the proportion equation
   81,600.84 : 122,413.59 = 28,997.82 : x
2. Step 2: Convert to fraction form
   81,600.84/122,413.59 = 28,997.82/x
3. Step 3: Cross multiply
   81,600.84x = 122,413.59 × 28,997.82
4. Step 4: Simplify right side
   81,600.84x = 3,549,727,248.37
5. Step 5: Solve for x
   x = 3,549,727,248.37/81,600.84
6. Step 6: Final answer
   x = 43,501.11