Finding the Fourth Proportional to 78,314.80, 108,074.53 and 42,504.81

Step by Step Solution

1. Step 1: Write the proportion equation
   78,314.80 : 108,074.53 = 42,504.81 : x
2. Step 2: Convert to fraction form
   78,314.80/108,074.53 = 42,504.81/x
3. Step 3: Cross multiply
   78,314.80x = 108,074.53 × 42,504.81
4. Step 4: Simplify right side
   78,314.80x = 4,593,687,363.49
5. Step 5: Solve for x
   x = 4,593,687,363.49/78,314.80
6. Step 6: Final answer
   x = 58,656.70