Finding the Fourth Proportional to 14,086.29, 21,130.05 and 5,321.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,086.29 : 21,130.05 = 5,321.89 : x
2. Step 2: Convert to fraction form
   14,086.29/21,130.05 = 5,321.89/x
3. Step 3: Cross multiply
   14,086.29x = 21,130.05 × 5,321.89
4. Step 4: Simplify right side
   14,086.29x = 112,451,801.79
5. Step 5: Solve for x
   x = 112,451,801.79/14,086.29
6. Step 6: Final answer
   x = 7,983.07