Finding the Fourth Proportional to 79,945.72, 119,878.46 and 26,618.91

Step by Step Solution

1. Step 1: Write the proportion equation
   79,945.72 : 119,878.46 = 26,618.91 : x
2. Step 2: Convert to fraction form
   79,945.72/119,878.46 = 26,618.91/x
3. Step 3: Cross multiply
   79,945.72x = 119,878.46 × 26,618.91
4. Step 4: Simplify right side
   79,945.72x = 3,191,033,454.86
5. Step 5: Solve for x
   x = 3,191,033,454.86/79,945.72
6. Step 6: Final answer
   x = 39,915.00