Finding the Fourth Proportional to 78,577.22, 108,436.57 and 42,767.49

Step by Step Solution

1. Step 1: Write the proportion equation
   78,577.22 : 108,436.57 = 42,767.49 : x
2. Step 2: Convert to fraction form
   78,577.22/108,436.57 = 42,767.49/x
3. Step 3: Cross multiply
   78,577.22x = 108,436.57 × 42,767.49
4. Step 4: Simplify right side
   78,577.22x = 4,637,560,463.39
5. Step 5: Solve for x
   x = 4,637,560,463.39/78,577.22
6. Step 6: Final answer
   x = 59,019.14