Finding the Fourth Proportional to 250,327.81, 375,575.55 and 81,855.91

Step by Step Solution

1. Step 1: Write the proportion equation
   250,327.81 : 375,575.55 = 81,855.91 : x
2. Step 2: Convert to fraction form
   250,327.81/375,575.55 = 81,855.91/x
3. Step 3: Cross multiply
   250,327.81x = 375,575.55 × 81,855.91
4. Step 4: Simplify right side
   250,327.81x = 30,743,077,173.10
5. Step 5: Solve for x
   x = 30,743,077,173.10/250,327.81
6. Step 6: Final answer
   x = 122,811.27