Finding the Fourth Proportional to 10,242.07, 15,367.89 and 5,309.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,242.07 : 15,367.89 = 5,309.02 : x
2. Step 2: Convert to fraction form
   10,242.07/15,367.89 = 5,309.02/x
3. Step 3: Cross multiply
   10,242.07x = 15,367.89 × 5,309.02
4. Step 4: Simplify right side
   10,242.07x = 81,588,351.37
5. Step 5: Solve for x
   x = 81,588,351.37/10,242.07
6. Step 6: Final answer
   x = 7,966.00