Finding the Fourth Proportional to 10,485.91, 15,738.59 and 5,295.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,485.91 : 15,738.59 = 5,295.43 : x
2. Step 2: Convert to fraction form
   10,485.91/15,738.59 = 5,295.43/x
3. Step 3: Cross multiply
   10,485.91x = 15,738.59 × 5,295.43
4. Step 4: Simplify right side
   10,485.91x = 83,342,575.17
5. Step 5: Solve for x
   x = 83,342,575.17/10,485.91
6. Step 6: Final answer
   x = 7,948.05