Finding the Fourth Proportional to 33,047.10, 49,643.55 and 31,807.80

Step by Step Solution

1. Step 1: Write the proportion equation
   33,047.10 : 49,643.55 = 31,807.80 : x
2. Step 2: Convert to fraction form
   33,047.10/49,643.55 = 31,807.80/x
3. Step 3: Cross multiply
   33,047.10x = 49,643.55 × 31,807.80
4. Step 4: Simplify right side
   33,047.10x = 1,579,052,109.69
5. Step 5: Solve for x
   x = 1,579,052,109.69/33,047.10
6. Step 6: Final answer
   x = 47,781.87