Finding the Fourth Proportional to 13,028.04, 17,978.76 and 7,654.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,028.04 : 17,978.76 = 7,654.10 : x
2. Step 2: Convert to fraction form
   13,028.04/17,978.76 = 7,654.10/x
3. Step 3: Cross multiply
   13,028.04x = 17,978.76 × 7,654.10
4. Step 4: Simplify right side
   13,028.04x = 137,611,137.02
5. Step 5: Solve for x
   x = 137,611,137.02/13,028.04
6. Step 6: Final answer
   x = 10,562.69