Finding the Fourth Proportional to 22,070.10, 30,456.71 and 11,998.51

Step by Step Solution

1. Step 1: Write the proportion equation
   22,070.10 : 30,456.71 = 11,998.51 : x
2. Step 2: Convert to fraction form
   22,070.10/30,456.71 = 11,998.51/x
3. Step 3: Cross multiply
   22,070.10x = 30,456.71 × 11,998.51
4. Step 4: Simplify right side
   22,070.10x = 365,435,079.51
5. Step 5: Solve for x
   x = 365,435,079.51/22,070.10
6. Step 6: Final answer
   x = 16,557.93