Finding the Fourth Proportional to 12,761.32, 17,619.30 and 9,404.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,761.32 : 17,619.30 = 9,404.52 : x
2. Step 2: Convert to fraction form
   12,761.32/17,619.30 = 9,404.52/x
3. Step 3: Cross multiply
   12,761.32x = 17,619.30 × 9,404.52
4. Step 4: Simplify right side
   12,761.32x = 165,701,059.24
5. Step 5: Solve for x
   x = 165,701,059.24/12,761.32
6. Step 6: Final answer
   x = 12,984.63