Finding the Fourth Proportional to 12,804.70, 17,671.18 and 7,499.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,804.70 : 17,671.18 = 7,499.92 : x
2. Step 2: Convert to fraction form
   12,804.70/17,671.18 = 7,499.92/x
3. Step 3: Cross multiply
   12,804.70x = 17,671.18 × 7,499.92
4. Step 4: Simplify right side
   12,804.70x = 132,532,436.31
5. Step 5: Solve for x
   x = 132,532,436.31/12,804.70
6. Step 6: Final answer
   x = 10,350.30