Finding the Fourth Proportional to 78,683.59, 108,581.97 and 42,873.85

Step by Step Solution

1. Step 1: Write the proportion equation
   78,683.59 : 108,581.97 = 42,873.85 : x
2. Step 2: Convert to fraction form
   78,683.59/108,581.97 = 42,873.85/x
3. Step 3: Cross multiply
   78,683.59x = 108,581.97 × 42,873.85
4. Step 4: Simplify right side
   78,683.59x = 4,655,327,094.48
5. Step 5: Solve for x
   x = 4,655,327,094.48/78,683.59
6. Step 6: Final answer
   x = 59,165.16