Finding the Fourth Proportional to 250,071.33, 374,918.34 and 81,491.00

Step by Step Solution

1. Step 1: Write the proportion equation
   250,071.33 : 374,918.34 = 81,491.00 : x
2. Step 2: Convert to fraction form
   250,071.33/374,918.34 = 81,491.00/x
3. Step 3: Cross multiply
   250,071.33x = 374,918.34 × 81,491.00
4. Step 4: Simplify right side
   250,071.33x = 30,552,468,570.35
5. Step 5: Solve for x
   x = 30,552,468,570.35/250,071.33
6. Step 6: Final answer
   x = 122,175.02