Finding the Fourth Proportional to 112,401.54, 155,112.32 and 61,413.18

Step by Step Solution

1. Step 1: Write the proportion equation
   112,401.54 : 155,112.32 = 61,413.18 : x
2. Step 2: Convert to fraction form
   112,401.54/155,112.32 = 61,413.18/x
3. Step 3: Cross multiply
   112,401.54x = 155,112.32 × 61,413.18
4. Step 4: Simplify right side
   112,401.54x = 9,525,940,828.38
5. Step 5: Solve for x
   x = 9,525,940,828.38/112,401.54
6. Step 6: Final answer
   x = 84,749.20