Finding the Fourth Proportional to 79,178.96, 109,265.61 and 42,880.11

Step by Step Solution

1. Step 1: Write the proportion equation
   79,178.96 : 109,265.61 = 42,880.11 : x
2. Step 2: Convert to fraction form
   79,178.96/109,265.61 = 42,880.11/x
3. Step 3: Cross multiply
   79,178.96x = 109,265.61 × 42,880.11
4. Step 4: Simplify right side
   79,178.96x = 4,685,321,319.84
5. Step 5: Solve for x
   x = 4,685,321,319.84/79,178.96
6. Step 6: Final answer
   x = 59,173.82