Finding the Fourth Proportional to 12,865.41, 17,752.86 and 7,560.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,865.41 : 17,752.86 = 7,560.30 : x
2. Step 2: Convert to fraction form
   12,865.41/17,752.86 = 7,560.30/x
3. Step 3: Cross multiply
   12,865.41x = 17,752.86 × 7,560.30
4. Step 4: Simplify right side
   12,865.41x = 134,216,947.46
5. Step 5: Solve for x
   x = 134,216,947.46/12,865.41
6. Step 6: Final answer
   x = 10,432.39