Finding the Fourth Proportional to 79,317.10, 109,400.25 and 67,361.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,317.10 : 109,400.25 = 67,361.50 : x
2. Step 2: Convert to fraction form
   79,317.10/109,400.25 = 67,361.50/x
3. Step 3: Cross multiply
   79,317.10x = 109,400.25 × 67,361.50
4. Step 4: Simplify right side
   79,317.10x = 7,369,364,940.38
5. Step 5: Solve for x
   x = 7,369,364,940.38/79,317.10
6. Step 6: Final answer
   x = 92,910.17