Finding the Fourth Proportional to 10,223.01, 15,323.57 and 5,287.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,223.01 : 15,323.57 = 5,287.68 : x
2. Step 2: Convert to fraction form
   10,223.01/15,323.57 = 5,287.68/x
3. Step 3: Cross multiply
   10,223.01x = 15,323.57 × 5,287.68
4. Step 4: Simplify right side
   10,223.01x = 81,026,134.62
5. Step 5: Solve for x
   x = 81,026,134.62/10,223.01
6. Step 6: Final answer
   x = 7,925.86