Finding the Fourth Proportional to 78,408.73, 108,204.56 and 42,598.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,408.73 : 108,204.56 = 42,598.73 : x
2. Step 2: Convert to fraction form
   78,408.73/108,204.56 = 42,598.73/x
3. Step 3: Cross multiply
   78,408.73x = 108,204.56 × 42,598.73
4. Step 4: Simplify right side
   78,408.73x = 4,609,376,836.21
5. Step 5: Solve for x
   x = 4,609,376,836.21/78,408.73
6. Step 6: Final answer
   x = 58,786.53