Finding the Fourth Proportional to 69,783.83, 104,633.60 and 31,308.30

Step by Step Solution

1. Step 1: Write the proportion equation
   69,783.83 : 104,633.60 = 31,308.30 : x
2. Step 2: Convert to fraction form
   69,783.83/104,633.60 = 31,308.30/x
3. Step 3: Cross multiply
   69,783.83x = 104,633.60 × 31,308.30
4. Step 4: Simplify right side
   69,783.83x = 3,275,899,982.34
5. Step 5: Solve for x
   x = 3,275,899,982.34/69,783.83
6. Step 6: Final answer
   x = 46,943.54