Finding the Fourth Proportional to 85,786.83, 128,696.42 and 32,494.77

Step by Step Solution

1. Step 1: Write the proportion equation
   85,786.83 : 128,696.42 = 32,494.77 : x
2. Step 2: Convert to fraction form
   85,786.83/128,696.42 = 32,494.77/x
3. Step 3: Cross multiply
   85,786.83x = 128,696.42 × 32,494.77
4. Step 4: Simplify right side
   85,786.83x = 4,181,960,648.96
5. Step 5: Solve for x
   x = 4,181,960,648.96/85,786.83
6. Step 6: Final answer
   x = 48,748.28