Finding the Fourth Proportional to 20,940.58, 31,417.69 and 9,848.37

Step by Step Solution

1. Step 1: Write the proportion equation
   20,940.58 : 31,417.69 = 9,848.37 : x
2. Step 2: Convert to fraction form
   20,940.58/31,417.69 = 9,848.37/x
3. Step 3: Cross multiply
   20,940.58x = 31,417.69 × 9,848.37
4. Step 4: Simplify right side
   20,940.58x = 309,413,035.67
5. Step 5: Solve for x
   x = 309,413,035.67/20,940.58
6. Step 6: Final answer
   x = 14,775.76