Finding the Fourth Proportional to 9,886.95, 14,820.89 and 3,309.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886.95 : 14,820.89 = 3,309.48 : x
2. Step 2: Convert to fraction form
   9,886.95/14,820.89 = 3,309.48/x
3. Step 3: Cross multiply
   9,886.95x = 14,820.89 × 3,309.48
4. Step 4: Simplify right side
   9,886.95x = 49,049,422.49
5. Step 5: Solve for x
   x = 49,049,422.49/9,886.95
6. Step 6: Final answer
   x = 4,961.03