Finding the Fourth Proportional to 78,314.63, 108,074.27 and 42,504.66

Step by Step Solution

1. Step 1: Write the proportion equation
   78,314.63 : 108,074.27 = 42,504.66 : x
2. Step 2: Convert to fraction form
   78,314.63/108,074.27 = 42,504.66/x
3. Step 3: Cross multiply
   78,314.63x = 108,074.27 × 42,504.66
4. Step 4: Simplify right side
   78,314.63x = 4,593,660,019.14
5. Step 5: Solve for x
   x = 4,593,660,019.14/78,314.63
6. Step 6: Final answer
   x = 58,656.47