Finding the Fourth Proportional to 79,108.40, 109,168.76 and 42,809.05

Step by Step Solution

1. Step 1: Write the proportion equation
   79,108.40 : 109,168.76 = 42,809.05 : x
2. Step 2: Convert to fraction form
   79,108.40/109,168.76 = 42,809.05/x
3. Step 3: Cross multiply
   79,108.40x = 109,168.76 × 42,809.05
4. Step 4: Simplify right side
   79,108.40x = 4,673,410,798.26
5. Step 5: Solve for x
   x = 4,673,410,798.26/79,108.40
6. Step 6: Final answer
   x = 59,076.04