Finding the Fourth Proportional to 12,840.50, 17,719.89 and 6,952.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,840.50 : 17,719.89 = 6,952.50 : x
2. Step 2: Convert to fraction form
   12,840.50/17,719.89 = 6,952.50/x
3. Step 3: Cross multiply
   12,840.50x = 17,719.89 × 6,952.50
4. Step 4: Simplify right side
   12,840.50x = 123,197,535.23
5. Step 5: Solve for x
   x = 123,197,535.23/12,840.50
6. Step 6: Final answer
   x = 9,594.45