Finding the Fourth Proportional to 39,111.25, 53,973.20 and 22,118.83

Step by Step Solution

1. Step 1: Write the proportion equation
   39,111.25 : 53,973.20 = 22,118.83 : x
2. Step 2: Convert to fraction form
   39,111.25/53,973.20 = 22,118.83/x
3. Step 3: Cross multiply
   39,111.25x = 53,973.20 × 22,118.83
4. Step 4: Simplify right side
   39,111.25x = 1,193,824,158.12
5. Step 5: Solve for x
   x = 1,193,824,158.12/39,111.25
6. Step 6: Final answer
   x = 30,523.80