Finding the Fourth Proportional to 250,469.34, 375,761.61 and 81,995.10

Step by Step Solution

1. Step 1: Write the proportion equation
   250,469.34 : 375,761.61 = 81,995.10 : x
2. Step 2: Convert to fraction form
   250,469.34/375,761.61 = 81,995.10/x
3. Step 3: Cross multiply
   250,469.34x = 375,761.61 × 81,995.10
4. Step 4: Simplify right side
   250,469.34x = 30,810,610,788.11
5. Step 5: Solve for x
   x = 30,810,610,788.11/250,469.34
6. Step 6: Final answer
   x = 123,011.51