Finding the Fourth Proportional to 10,001.29, 13,802.59 and 5,525.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,001.29 : 13,802.59 = 5,525.43 : x
2. Step 2: Convert to fraction form
   10,001.29/13,802.59 = 5,525.43/x
3. Step 3: Cross multiply
   10,001.29x = 13,802.59 × 5,525.43
4. Step 4: Simplify right side
   10,001.29x = 76,265,265.56
5. Step 5: Solve for x
   x = 76,265,265.56/10,001.29
6. Step 6: Final answer
   x = 7,625.54