Finding the Fourth Proportional to 14,020.69, 21,026.42 and 5,134.51

Step by Step Solution

1. Step 1: Write the proportion equation
   14,020.69 : 21,026.42 = 5,134.51 : x
2. Step 2: Convert to fraction form
   14,020.69/21,026.42 = 5,134.51/x
3. Step 3: Cross multiply
   14,020.69x = 21,026.42 × 5,134.51
4. Step 4: Simplify right side
   14,020.69x = 107,960,265.35
5. Step 5: Solve for x
   x = 107,960,265.35/14,020.69
6. Step 6: Final answer
   x = 7,700.07