Finding the Fourth Proportional to 9,906.45, 14,860.33 and 3,666.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906.45 : 14,860.33 = 3,666.31 : x
2. Step 2: Convert to fraction form
   9,906.45/14,860.33 = 3,666.31/x
3. Step 3: Cross multiply
   9,906.45x = 14,860.33 × 3,666.31
4. Step 4: Simplify right side
   9,906.45x = 54,482,530.17
5. Step 5: Solve for x
   x = 54,482,530.17/9,906.45
6. Step 6: Final answer
   x = 5,499.70