Finding the Fourth Proportional to 9,886.42, 14,825.31 and 2,959.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886.42 : 14,825.31 = 2,959.30 : x
2. Step 2: Convert to fraction form
   9,886.42/14,825.31 = 2,959.30/x
3. Step 3: Cross multiply
   9,886.42x = 14,825.31 × 2,959.30
4. Step 4: Simplify right side
   9,886.42x = 43,872,513.95
5. Step 5: Solve for x
   x = 43,872,513.95/9,886.42
6. Step 6: Final answer
   x = 4,437.65