Finding the Fourth Proportional to 79,491.84, 109,667.28 and 51,214

Step by Step Solution

1. Step 1: Write the proportion equation
   79,491.84 : 109,667.28 = 51,214 : x
2. Step 2: Convert to fraction form
   79,491.84/109,667.28 = 51,214/x
3. Step 3: Cross multiply
   79,491.84x = 109,667.28 × 51,214
4. Step 4: Simplify right side
   79,491.84x = 5,616,500,077.92
5. Step 5: Solve for x
   x = 5,616,500,077.92/79,491.84
6. Step 6: Final answer
   x = 70,655.05