Finding the Fourth Proportional to 57,005, 78,664.56 and 33,131.48

Step by Step Solution

1. Step 1: Write the proportion equation
   57,005 : 78,664.56 = 33,131.48 : x
2. Step 2: Convert to fraction form
   57,005/78,664.56 = 33,131.48/x
3. Step 3: Cross multiply
   57,005x = 78,664.56 × 33,131.48
4. Step 4: Simplify right side
   57,005x = 2,606,273,296.35
5. Step 5: Solve for x
   x = 2,606,273,296.35/57,005
6. Step 6: Final answer
   x = 45,720.08