Finding the Fourth Proportional to 10,978.88, 15,165.60 and 10,460.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.88 : 15,165.60 = 10,460.48 : x
2. Step 2: Convert to fraction form
   10,978.88/15,165.60 = 10,460.48/x
3. Step 3: Cross multiply
   10,978.88x = 15,165.60 × 10,460.48
4. Step 4: Simplify right side
   10,978.88x = 158,639,455.49
5. Step 5: Solve for x
   x = 158,639,455.49/10,978.88
6. Step 6: Final answer
   x = 14,449.51