Finding the Fourth Proportional to 12,902.37, 17,804.66 and 7,236.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,902.37 : 17,804.66 = 7,236.42 : x
2. Step 2: Convert to fraction form
   12,902.37/17,804.66 = 7,236.42/x
3. Step 3: Cross multiply
   12,902.37x = 17,804.66 × 7,236.42
4. Step 4: Simplify right side
   12,902.37x = 128,841,961.54
5. Step 5: Solve for x
   x = 128,841,961.54/12,902.37
6. Step 6: Final answer
   x = 9,985.91