Finding the Fourth Proportional to 80,695.45, 111,383.18 and 53,837.90

Step by Step Solution

1. Step 1: Write the proportion equation
   80,695.45 : 111,383.18 = 53,837.90 : x
2. Step 2: Convert to fraction form
   80,695.45/111,383.18 = 53,837.90/x
3. Step 3: Cross multiply
   80,695.45x = 111,383.18 × 53,837.90
4. Step 4: Simplify right side
   80,695.45x = 5,996,636,506.52
5. Step 5: Solve for x
   x = 5,996,636,506.52/80,695.45
6. Step 6: Final answer
   x = 74,311.95