Finding the Fourth Proportional to 39,993.91, 55,191.59 and 22,090.07

Step by Step Solution

1. Step 1: Write the proportion equation
   39,993.91 : 55,191.59 = 22,090.07 : x
2. Step 2: Convert to fraction form
   39,993.91/55,191.59 = 22,090.07/x
3. Step 3: Cross multiply
   39,993.91x = 55,191.59 × 22,090.07
4. Step 4: Simplify right side
   39,993.91x = 1,219,185,987.38
5. Step 5: Solve for x
   x = 1,219,185,987.38/39,993.91
6. Step 6: Final answer
   x = 30,484.29