Finding the Fourth Proportional to 12,615.58, 17,409.24 and 7,902.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,615.58 : 17,409.24 = 7,902.46 : x
2. Step 2: Convert to fraction form
   12,615.58/17,409.24 = 7,902.46/x
3. Step 3: Cross multiply
   12,615.58x = 17,409.24 × 7,902.46
4. Step 4: Simplify right side
   12,615.58x = 137,575,822.73
5. Step 5: Solve for x
   x = 137,575,822.73/12,615.58
6. Step 6: Final answer
   x = 10,905.23