Finding the Fourth Proportional to 10,386.24, 15,583.20 and 3,816.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,386.24 : 15,583.20 = 3,816.72 : x
2. Step 2: Convert to fraction form
   10,386.24/15,583.20 = 3,816.72/x
3. Step 3: Cross multiply
   10,386.24x = 15,583.20 × 3,816.72
4. Step 4: Simplify right side
   10,386.24x = 59,476,711.10
5. Step 5: Solve for x
   x = 59,476,711.10/10,386.24
6. Step 6: Final answer
   x = 5,726.49