Finding the Fourth Proportional to 85,578, 128,385 and 32,268.96

Step by Step Solution

1. Step 1: Write the proportion equation
   85,578 : 128,385 = 32,268.96 : x
2. Step 2: Convert to fraction form
   85,578/128,385 = 32,268.96/x
3. Step 3: Cross multiply
   85,578x = 128,385 × 32,268.96
4. Step 4: Simplify right side
   85,578x = 4,142,850,429.60
5. Step 5: Solve for x
   x = 4,142,850,429.60/85,578
6. Step 6: Final answer
   x = 48,410.23