Finding the Fourth Proportional to 9,036.98, 13,456.25 and 8,937.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.98 : 13,456.25 = 8,937.76 : x
2. Step 2: Convert to fraction form
   9,036.98/13,456.25 = 8,937.76/x
3. Step 3: Cross multiply
   9,036.98x = 13,456.25 × 8,937.76
4. Step 4: Simplify right side
   9,036.98x = 120,268,654.67
5. Step 5: Solve for x
   x = 120,268,654.67/9,036.98
6. Step 6: Final answer
   x = 13,308.50