Finding the Fourth Proportional to 79,105.72, 109,168.68 and 53,299.12

Step by Step Solution

1. Step 1: Write the proportion equation
   79,105.72 : 109,168.68 = 53,299.12 : x
2. Step 2: Convert to fraction form
   79,105.72/109,168.68 = 53,299.12/x
3. Step 3: Cross multiply
   79,105.72x = 109,168.68 × 53,299.12
4. Step 4: Simplify right side
   79,105.72x = 5,818,594,575.56
5. Step 5: Solve for x
   x = 5,818,594,575.56/79,105.72
6. Step 6: Final answer
   x = 73,554.66