Finding the Fourth Proportional to 78,493.86, 108,322.92 and 42,683.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,493.86 : 108,322.92 = 42,683.76 : x
2. Step 2: Convert to fraction form
   78,493.86/108,322.92 = 42,683.76/x
3. Step 3: Cross multiply
   78,493.86x = 108,322.92 × 42,683.76
4. Step 4: Simplify right side
   78,493.86x = 4,623,629,519.78
5. Step 5: Solve for x
   x = 4,623,629,519.78/78,493.86
6. Step 6: Final answer
   x = 58,904.35