Finding the Fourth Proportional to 12,320.76, 17,004.57 and 7,846.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,320.76 : 17,004.57 = 7,846.47 : x
2. Step 2: Convert to fraction form
   12,320.76/17,004.57 = 7,846.47/x
3. Step 3: Cross multiply
   12,320.76x = 17,004.57 × 7,846.47
4. Step 4: Simplify right side
   12,320.76x = 133,425,848.37
5. Step 5: Solve for x
   x = 133,425,848.37/12,320.76
6. Step 6: Final answer
   x = 10,829.35