Finding the Fourth Proportional to 14,727.86, 22,171.89 and 13,420.04

Step by Step Solution

1. Step 1: Write the proportion equation
   14,727.86 : 22,171.89 = 13,420.04 : x
2. Step 2: Convert to fraction form
   14,727.86/22,171.89 = 13,420.04/x
3. Step 3: Cross multiply
   14,727.86x = 22,171.89 × 13,420.04
4. Step 4: Simplify right side
   14,727.86x = 297,547,539.82
5. Step 5: Solve for x
   x = 297,547,539.82/14,727.86
6. Step 6: Final answer
   x = 20,203.05