Finding the Fourth Proportional to 79,179.17, 109,267.08 and 42,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,179.17 : 109,267.08 = 42,880.50 : x
2. Step 2: Convert to fraction form
   79,179.17/109,267.08 = 42,880.50/x
3. Step 3: Cross multiply
   79,179.17x = 109,267.08 × 42,880.50
4. Step 4: Simplify right side
   79,179.17x = 4,685,426,614.19
5. Step 5: Solve for x
   x = 4,685,426,614.19/79,179.17
6. Step 6: Final answer
   x = 59,174.99