Finding the Fourth Proportional to 79,787.20, 119,716.05 and 42,338.14

Step by Step Solution

1. Step 1: Write the proportion equation
   79,787.20 : 119,716.05 = 42,338.14 : x
2. Step 2: Convert to fraction form
   79,787.20/119,716.05 = 42,338.14/x
3. Step 3: Cross multiply
   79,787.20x = 119,716.05 × 42,338.14
4. Step 4: Simplify right side
   79,787.20x = 5,068,554,885.15
5. Step 5: Solve for x
   x = 5,068,554,885.15/79,787.20
6. Step 6: Final answer
   x = 63,525.91