Finding the Fourth Proportional to 81,300.76, 121,947.48 and 33,896.32

Step by Step Solution

1. Step 1: Write the proportion equation
   81,300.76 : 121,947.48 = 33,896.32 : x
2. Step 2: Convert to fraction form
   81,300.76/121,947.48 = 33,896.32/x
3. Step 3: Cross multiply
   81,300.76x = 121,947.48 × 33,896.32
4. Step 4: Simplify right side
   81,300.76x = 4,133,570,805.27
5. Step 5: Solve for x
   x = 4,133,570,805.27/81,300.76
6. Step 6: Final answer
   x = 50,842.95