Finding the Fourth Proportional to 9,900.41, 14,851.28 and 2,880.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.41 : 14,851.28 = 2,880.43 : x
2. Step 2: Convert to fraction form
   9,900.41/14,851.28 = 2,880.43/x
3. Step 3: Cross multiply
   9,900.41x = 14,851.28 × 2,880.43
4. Step 4: Simplify right side
   9,900.41x = 42,778,042.52
5. Step 5: Solve for x
   x = 42,778,042.52/9,900.41
6. Step 6: Final answer
   x = 4,320.84