Finding the Fourth Proportional to 250,105.05, 375,164.27 and 81,635.61

Step by Step Solution

1. Step 1: Write the proportion equation
   250,105.05 : 375,164.27 = 81,635.61 : x
2. Step 2: Convert to fraction form
   250,105.05/375,164.27 = 81,635.61/x
3. Step 3: Cross multiply
   250,105.05x = 375,164.27 × 81,635.61
4. Step 4: Simplify right side
   250,105.05x = 30,626,763,623.48
5. Step 5: Solve for x
   x = 30,626,763,623.48/250,105.05
6. Step 6: Final answer
   x = 122,455.60