Finding the Fourth Proportional to 9,899.34, 14,851.17 and 2,879.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,899.34 : 14,851.17 = 2,879.43 : x
2. Step 2: Convert to fraction form
   9,899.34/14,851.17 = 2,879.43/x
3. Step 3: Cross multiply
   9,899.34x = 14,851.17 × 2,879.43
4. Step 4: Simplify right side
   9,899.34x = 42,762,904.43
5. Step 5: Solve for x
   x = 42,762,904.43/9,899.34
6. Step 6: Final answer
   x = 4,319.77