Finding the Fourth Proportional to 78,682.42, 108,582.33 and 42,873.40

Step by Step Solution

1. Step 1: Write the proportion equation
   78,682.42 : 108,582.33 = 42,873.40 : x
2. Step 2: Convert to fraction form
   78,682.42/108,582.33 = 42,873.40/x
3. Step 3: Cross multiply
   78,682.42x = 108,582.33 × 42,873.40
4. Step 4: Simplify right side
   78,682.42x = 4,655,293,667.02
5. Step 5: Solve for x
   x = 4,655,293,667.02/78,682.42
6. Step 6: Final answer
   x = 59,165.61