Finding the Fourth Proportional to 11,870.22, 16,380.23 and 6,491.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870.22 : 16,380.23 = 6,491.58 : x
2. Step 2: Convert to fraction form
   11,870.22/16,380.23 = 6,491.58/x
3. Step 3: Cross multiply
   11,870.22x = 16,380.23 × 6,491.58
4. Step 4: Simplify right side
   11,870.22x = 106,333,573.46
5. Step 5: Solve for x
   x = 106,333,573.46/11,870.22
6. Step 6: Final answer
   x = 8,958.02