Finding the Fourth Proportional to 14,530.81, 21,799.86 and 4,142.56

Step by Step Solution

1. Step 1: Write the proportion equation
   14,530.81 : 21,799.86 = 4,142.56 : x
2. Step 2: Convert to fraction form
   14,530.81/21,799.86 = 4,142.56/x
3. Step 3: Cross multiply
   14,530.81x = 21,799.86 × 4,142.56
4. Step 4: Simplify right side
   14,530.81x = 90,307,228.04
5. Step 5: Solve for x
   x = 90,307,228.04/14,530.81
6. Step 6: Final answer
   x = 6,214.88