Finding the Fourth Proportional to 22,153.83, 33,214.32 and 13,386.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,153.83 : 33,214.32 = 13,386.72 : x
2. Step 2: Convert to fraction form
   22,153.83/33,214.32 = 13,386.72/x
3. Step 3: Cross multiply
   22,153.83x = 33,214.32 × 13,386.72
4. Step 4: Simplify right side
   22,153.83x = 444,630,801.83
5. Step 5: Solve for x
   x = 444,630,801.83/22,153.83
6. Step 6: Final answer
   x = 20,070.15