Finding the Fourth Proportional to 10,859.74, 16,287.72 and 5,015.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,859.74 : 16,287.72 = 5,015.86 : x
2. Step 2: Convert to fraction form
   10,859.74/16,287.72 = 5,015.86/x
3. Step 3: Cross multiply
   10,859.74x = 16,287.72 × 5,015.86
4. Step 4: Simplify right side
   10,859.74x = 81,696,923.24
5. Step 5: Solve for x
   x = 81,696,923.24/10,859.74
6. Step 6: Final answer
   x = 7,522.92