Finding the Fourth Proportional to 10,458.38, 15,693.69 and 3,889.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,458.38 : 15,693.69 = 3,889.10 : x
2. Step 2: Convert to fraction form
   10,458.38/15,693.69 = 3,889.10/x
3. Step 3: Cross multiply
   10,458.38x = 15,693.69 × 3,889.10
4. Step 4: Simplify right side
   10,458.38x = 61,034,329.78
5. Step 5: Solve for x
   x = 61,034,329.78/10,458.38
6. Step 6: Final answer
   x = 5,835.93