Finding the Fourth Proportional to 10,168.79, 14,032.75 and 5,631.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,168.79 : 14,032.75 = 5,631.38 : x
2. Step 2: Convert to fraction form
   10,168.79/14,032.75 = 5,631.38/x
3. Step 3: Cross multiply
   10,168.79x = 14,032.75 × 5,631.38
4. Step 4: Simplify right side
   10,168.79x = 79,023,663.45
5. Step 5: Solve for x
   x = 79,023,663.45/10,168.79
6. Step 6: Final answer
   x = 7,771.20