Finding the Fourth Proportional to 78,844.73, 108,840.71 and 53,388.05

Step by Step Solution

1. Step 1: Write the proportion equation
   78,844.73 : 108,840.71 = 53,388.05 : x
2. Step 2: Convert to fraction form
   78,844.73/108,840.71 = 53,388.05/x
3. Step 3: Cross multiply
   78,844.73x = 108,840.71 × 53,388.05
4. Step 4: Simplify right side
   78,844.73x = 5,810,792,856.78
5. Step 5: Solve for x
   x = 5,810,792,856.78/78,844.73
6. Step 6: Final answer
   x = 73,699.20