Finding the Fourth Proportional to 9,113.31, 13,661.76 and 3,268.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,113.31 : 13,661.76 = 3,268.55 : x
2. Step 2: Convert to fraction form
   9,113.31/13,661.76 = 3,268.55/x
3. Step 3: Cross multiply
   9,113.31x = 13,661.76 × 3,268.55
4. Step 4: Simplify right side
   9,113.31x = 44,654,061.00
5. Step 5: Solve for x
   x = 44,654,061.00/9,113.31
6. Step 6: Final answer
   x = 4,899.88