Finding the Fourth Proportional to 85,544.82, 128,317.29 and 23,215.32

Step by Step Solution

1. Step 1: Write the proportion equation
   85,544.82 : 128,317.29 = 23,215.32 : x
2. Step 2: Convert to fraction form
   85,544.82/128,317.29 = 23,215.32/x
3. Step 3: Cross multiply
   85,544.82x = 128,317.29 × 23,215.32
4. Step 4: Simplify right side
   85,544.82x = 2,978,926,948.88
5. Step 5: Solve for x
   x = 2,978,926,948.88/85,544.82
6. Step 6: Final answer
   x = 34,823.00