Finding the Fourth Proportional to 10,019.78, 13,831.73 and 5,988.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,019.78 : 13,831.73 = 5,988.03 : x
2. Step 2: Convert to fraction form
   10,019.78/13,831.73 = 5,988.03/x
3. Step 3: Cross multiply
   10,019.78x = 13,831.73 × 5,988.03
4. Step 4: Simplify right side
   10,019.78x = 82,824,848.77
5. Step 5: Solve for x
   x = 82,824,848.77/10,019.78
6. Step 6: Final answer
   x = 8,266.13