Finding the Fourth Proportional to 9,789.12, 14,682.60 and 9,570.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789.12 : 14,682.60 = 9,570.24 : x
2. Step 2: Convert to fraction form
   9,789.12/14,682.60 = 9,570.24/x
3. Step 3: Cross multiply
   9,789.12x = 14,682.60 × 9,570.24
4. Step 4: Simplify right side
   9,789.12x = 140,516,005.82
5. Step 5: Solve for x
   x = 140,516,005.82/9,789.12
6. Step 6: Final answer
   x = 14,354.30