Finding the Fourth Proportional to 39,783.35, 54,893.70 and 23,656.05

Step by Step Solution

1. Step 1: Write the proportion equation
   39,783.35 : 54,893.70 = 23,656.05 : x
2. Step 2: Convert to fraction form
   39,783.35/54,893.70 = 23,656.05/x
3. Step 3: Cross multiply
   39,783.35x = 54,893.70 × 23,656.05
4. Step 4: Simplify right side
   39,783.35x = 1,298,568,111.89
5. Step 5: Solve for x
   x = 1,298,568,111.89/39,783.35
6. Step 6: Final answer
   x = 32,640.99