Finding the Fourth Proportional to 10,168.81, 14,032.28 and 5,631.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,168.81 : 14,032.28 = 5,631.17 : x
2. Step 2: Convert to fraction form
   10,168.81/14,032.28 = 5,631.17/x
3. Step 3: Cross multiply
   10,168.81x = 14,032.28 × 5,631.17
4. Step 4: Simplify right side
   10,168.81x = 79,018,090.93
5. Step 5: Solve for x
   x = 79,018,090.93/10,168.81
6. Step 6: Final answer
   x = 7,770.63