Finding the Fourth Proportional to 12,565.39, 17,340.30 and 7,852.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,565.39 : 17,340.30 = 7,852.39 : x
2. Step 2: Convert to fraction form
   12,565.39/17,340.30 = 7,852.39/x
3. Step 3: Cross multiply
   12,565.39x = 17,340.30 × 7,852.39
4. Step 4: Simplify right side
   12,565.39x = 136,162,798.32
5. Step 5: Solve for x
   x = 136,162,798.32/12,565.39
6. Step 6: Final answer
   x = 10,836.34