Finding the Fourth Proportional to 79,287, 109,419.38 and 43,478.39

Step by Step Solution

1. Step 1: Write the proportion equation
   79,287 : 109,419.38 = 43,478.39 : x
2. Step 2: Convert to fraction form
   79,287/109,419.38 = 43,478.39/x
3. Step 3: Cross multiply
   79,287x = 109,419.38 × 43,478.39
4. Step 4: Simplify right side
   79,287x = 4,757,377,712.71
5. Step 5: Solve for x
   x = 4,757,377,712.71/79,287
6. Step 6: Final answer
   x = 60,001.99