Finding the Fourth Proportional to 22,092.04, 30,486.77 and 13,139.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,092.04 : 30,486.77 = 13,139.34 : x
2. Step 2: Convert to fraction form
   22,092.04/30,486.77 = 13,139.34/x
3. Step 3: Cross multiply
   22,092.04x = 30,486.77 × 13,139.34
4. Step 4: Simplify right side
   22,092.04x = 400,575,970.84
5. Step 5: Solve for x
   x = 400,575,970.84/22,092.04
6. Step 6: Final answer
   x = 18,132.14