Finding the Fourth Proportional to 79,155.33, 109,234.53 and 42,857.16

Step by Step Solution

1. Step 1: Write the proportion equation
   79,155.33 : 109,234.53 = 42,857.16 : x
2. Step 2: Convert to fraction form
   79,155.33/109,234.53 = 42,857.16/x
3. Step 3: Cross multiply
   79,155.33x = 109,234.53 × 42,857.16
4. Step 4: Simplify right side
   79,155.33x = 4,681,481,729.73
5. Step 5: Solve for x
   x = 4,681,481,729.73/79,155.33
6. Step 6: Final answer
   x = 59,142.98