Finding the Fourth Proportional to 11,525.01, 17,243.76 and 7,131.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,525.01 : 17,243.76 = 7,131.57 : x
2. Step 2: Convert to fraction form
   11,525.01/17,243.76 = 7,131.57/x
3. Step 3: Cross multiply
   11,525.01x = 17,243.76 × 7,131.57
4. Step 4: Simplify right side
   11,525.01x = 122,975,081.50
5. Step 5: Solve for x
   x = 122,975,081.50/11,525.01
6. Step 6: Final answer
   x = 10,670.28