Finding the Fourth Proportional to 72,994.32, 100,757.24 and 42,789.36

Step by Step Solution

1. Step 1: Write the proportion equation
   72,994.32 : 100,757.24 = 42,789.36 : x
2. Step 2: Convert to fraction form
   72,994.32/100,757.24 = 42,789.36/x
3. Step 3: Cross multiply
   72,994.32x = 100,757.24 × 42,789.36
4. Step 4: Simplify right side
   72,994.32x = 4,311,337,814.97
5. Step 5: Solve for x
   x = 4,311,337,814.97/72,994.32
6. Step 6: Final answer
   x = 59,064.02