Finding the Fourth Proportional to 85,377.60, 128,072.59 and 32,787.08

Step by Step Solution

1. Step 1: Write the proportion equation
   85,377.60 : 128,072.59 = 32,787.08 : x
2. Step 2: Convert to fraction form
   85,377.60/128,072.59 = 32,787.08/x
3. Step 3: Cross multiply
   85,377.60x = 128,072.59 × 32,787.08
4. Step 4: Simplify right side
   85,377.60x = 4,199,126,090.20
5. Step 5: Solve for x
   x = 4,199,126,090.20/85,377.60
6. Step 6: Final answer
   x = 49,183.00