Finding the Fourth Proportional to 14,327.69, 21,343.77 and 13,892.45

Step by Step Solution

1. Step 1: Write the proportion equation
   14,327.69 : 21,343.77 = 13,892.45 : x
2. Step 2: Convert to fraction form
   14,327.69/21,343.77 = 13,892.45/x
3. Step 3: Cross multiply
   14,327.69x = 21,343.77 × 13,892.45
4. Step 4: Simplify right side
   14,327.69x = 296,517,150.82
5. Step 5: Solve for x
   x = 296,517,150.82/14,327.69
6. Step 6: Final answer
   x = 20,695.40