Finding the Fourth Proportional to 22,080.83, 30,460.83 and 13,121.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,080.83 : 30,460.83 = 13,121.99 : x
2. Step 2: Convert to fraction form
   22,080.83/30,460.83 = 13,121.99/x
3. Step 3: Cross multiply
   22,080.83x = 30,460.83 × 13,121.99
4. Step 4: Simplify right side
   22,080.83x = 399,706,554.35
5. Step 5: Solve for x
   x = 399,706,554.35/22,080.83
6. Step 6: Final answer
   x = 18,101.98