Finding the Fourth Proportional to 39,111.29, 53,978.48 and 22,116.48

Step by Step Solution

1. Step 1: Write the proportion equation
   39,111.29 : 53,978.48 = 22,116.48 : x
2. Step 2: Convert to fraction form
   39,111.29/53,978.48 = 22,116.48/x
3. Step 3: Cross multiply
   39,111.29x = 53,978.48 × 22,116.48
4. Step 4: Simplify right side
   39,111.29x = 1,193,813,973.35
5. Step 5: Solve for x
   x = 1,193,813,973.35/39,111.29
6. Step 6: Final answer
   x = 30,523.51