Finding the Fourth Proportional to 39,987.37, 55,181.94 and 22,081.93

Step by Step Solution

1. Step 1: Write the proportion equation
   39,987.37 : 55,181.94 = 22,081.93 : x
2. Step 2: Convert to fraction form
   39,987.37/55,181.94 = 22,081.93/x
3. Step 3: Cross multiply
   39,987.37x = 55,181.94 × 22,081.93
4. Step 4: Simplify right side
   39,987.37x = 1,218,523,736.34
5. Step 5: Solve for x
   x = 1,218,523,736.34/39,987.37
6. Step 6: Final answer
   x = 30,472.72