Finding the Fourth Proportional to 78,314.93, 108,074.70 and 42,504.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,314.93 : 108,074.70 = 42,504.94 : x
2. Step 2: Convert to fraction form
   78,314.93/108,074.70 = 42,504.94/x
3. Step 3: Cross multiply
   78,314.93x = 108,074.70 × 42,504.94
4. Step 4: Simplify right side
   78,314.93x = 4,593,708,098.64
5. Step 5: Solve for x
   x = 4,593,708,098.64/78,314.93
6. Step 6: Final answer
   x = 58,656.87