Finding the Fourth Proportional to 10,255.47, 15,389.69 and 5,881.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,255.47 : 15,389.69 = 5,881.47 : x
2. Step 2: Convert to fraction form
   10,255.47/15,389.69 = 5,881.47/x
3. Step 3: Cross multiply
   10,255.47x = 15,389.69 × 5,881.47
4. Step 4: Simplify right side
   10,255.47x = 90,513,970.64
5. Step 5: Solve for x
   x = 90,513,970.64/10,255.47
6. Step 6: Final answer
   x = 8,825.92