Finding the Fourth Proportional to 10,346.67, 14,278.59 and 5,631.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,346.67 : 14,278.59 = 5,631.03 : x
2. Step 2: Convert to fraction form
   10,346.67/14,278.59 = 5,631.03/x
3. Step 3: Cross multiply
   10,346.67x = 14,278.59 × 5,631.03
4. Step 4: Simplify right side
   10,346.67x = 80,403,168.65
5. Step 5: Solve for x
   x = 80,403,168.65/10,346.67
6. Step 6: Final answer
   x = 7,770.92