Finding the Fourth Proportional to 79,039.40, 109,043.82 and 48,772.13

Step by Step Solution

1. Step 1: Write the proportion equation
   79,039.40 : 109,043.82 = 48,772.13 : x
2. Step 2: Convert to fraction form
   79,039.40/109,043.82 = 48,772.13/x
3. Step 3: Cross multiply
   79,039.40x = 109,043.82 × 48,772.13
4. Step 4: Simplify right side
   79,039.40x = 5,318,298,819.52
5. Step 5: Solve for x
   x = 5,318,298,819.52/79,039.40
6. Step 6: Final answer
   x = 67,286.68