Finding the Fourth Proportional to 68,554.79, 102,819.58 and 31,105.86

Step by Step Solution

1. Step 1: Write the proportion equation
   68,554.79 : 102,819.58 = 31,105.86 : x
2. Step 2: Convert to fraction form
   68,554.79/102,819.58 = 31,105.86/x
3. Step 3: Cross multiply
   68,554.79x = 102,819.58 × 31,105.86
4. Step 4: Simplify right side
   68,554.79x = 3,198,290,997.40
5. Step 5: Solve for x
   x = 3,198,290,997.40/68,554.79
6. Step 6: Final answer
   x = 46,653.06