Finding the Fourth Proportional to 78,651.12, 108,537.60 and 42,841

Step by Step Solution

1. Step 1: Write the proportion equation
   78,651.12 : 108,537.60 = 42,841 : x
2. Step 2: Convert to fraction form
   78,651.12/108,537.60 = 42,841/x
3. Step 3: Cross multiply
   78,651.12x = 108,537.60 × 42,841
4. Step 4: Simplify right side
   78,651.12x = 4,649,859,321.60
5. Step 5: Solve for x
   x = 4,649,859,321.60/78,651.12
6. Step 6: Final answer
   x = 59,120.06