Finding the Fourth Proportional to 9,907.75, 14,851.15 and 3,663.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,907.75 : 14,851.15 = 3,663.76 : x
2. Step 2: Convert to fraction form
   9,907.75/14,851.15 = 3,663.76/x
3. Step 3: Cross multiply
   9,907.75x = 14,851.15 × 3,663.76
4. Step 4: Simplify right side
   9,907.75x = 54,410,975.07
5. Step 5: Solve for x
   x = 54,410,975.07/9,907.75
6. Step 6: Final answer
   x = 5,491.76