Finding the Fourth Proportional to 78,648.14, 108,558.15 and 53,512.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,648.14 : 108,558.15 = 53,512.22 : x
2. Step 2: Convert to fraction form
   78,648.14/108,558.15 = 53,512.22/x
3. Step 3: Cross multiply
   78,648.14x = 108,558.15 × 53,512.22
4. Step 4: Simplify right side
   78,648.14x = 5,809,187,605.59
5. Step 5: Solve for x
   x = 5,809,187,605.59/78,648.14
6. Step 6: Final answer
   x = 73,863.00