Finding the Fourth Proportional to 10,389.33, 15,583.86 and 3,812.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,389.33 : 15,583.86 = 3,812.94 : x
2. Step 2: Convert to fraction form
   10,389.33/15,583.86 = 3,812.94/x
3. Step 3: Cross multiply
   10,389.33x = 15,583.86 × 3,812.94
4. Step 4: Simplify right side
   10,389.33x = 59,420,323.15
5. Step 5: Solve for x
   x = 59,420,323.15/10,389.33
6. Step 6: Final answer
   x = 5,719.36