Finding the Fourth Proportional to 85,391.82, 128,077.92 and 32,764.32

Step by Step Solution

1. Step 1: Write the proportion equation
   85,391.82 : 128,077.92 = 32,764.32 : x
2. Step 2: Convert to fraction form
   85,391.82/128,077.92 = 32,764.32/x
3. Step 3: Cross multiply
   85,391.82x = 128,077.92 × 32,764.32
4. Step 4: Simplify right side
   85,391.82x = 4,196,385,955.81
5. Step 5: Solve for x
   x = 4,196,385,955.81/85,391.82
6. Step 6: Final answer
   x = 49,142.72