Finding the Fourth Proportional to 78,314.86, 108,074.62 and 42,504.87

Step by Step Solution

1. Step 1: Write the proportion equation
   78,314.86 : 108,074.62 = 42,504.87 : x
2. Step 2: Convert to fraction form
   78,314.86/108,074.62 = 42,504.87/x
3. Step 3: Cross multiply
   78,314.86x = 108,074.62 × 42,504.87
4. Step 4: Simplify right side
   78,314.86x = 4,593,697,892.72
5. Step 5: Solve for x
   x = 4,593,697,892.72/78,314.86
6. Step 6: Final answer
   x = 58,656.78