Finding the Fourth Proportional to 8,891.31, 13,337.72 and 2,317.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,891.31 : 13,337.72 = 2,317.48 : x
2. Step 2: Convert to fraction form
   8,891.31/13,337.72 = 2,317.48/x
3. Step 3: Cross multiply
   8,891.31x = 13,337.72 × 2,317.48
4. Step 4: Simplify right side
   8,891.31x = 30,909,913.12
5. Step 5: Solve for x
   x = 30,909,913.12/8,891.31
6. Step 6: Final answer
   x = 3,476.42