Finding the Fourth Proportional to 78,457.97, 108,272.07 and 42,647.98

Step by Step Solution

1. Step 1: Write the proportion equation
   78,457.97 : 108,272.07 = 42,647.98 : x
2. Step 2: Convert to fraction form
   78,457.97/108,272.07 = 42,647.98/x
3. Step 3: Cross multiply
   78,457.97x = 108,272.07 × 42,647.98
4. Step 4: Simplify right side
   78,457.97x = 4,617,585,075.92
5. Step 5: Solve for x
   x = 4,617,585,075.92/78,457.97
6. Step 6: Final answer
   x = 58,854.25