Finding the Fourth Proportional to 12,566.60, 17,342.27 and 7,115.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,566.60 : 17,342.27 = 7,115.25 : x
2. Step 2: Convert to fraction form
   12,566.60/17,342.27 = 7,115.25/x
3. Step 3: Cross multiply
   12,566.60x = 17,342.27 × 7,115.25
4. Step 4: Simplify right side
   12,566.60x = 123,394,551.04
5. Step 5: Solve for x
   x = 123,394,551.04/12,566.60
6. Step 6: Final answer
   x = 9,819.25